332354 + Interview Questions in Secondary School in Math

1.	8x³ + 27 y ³+ 36x²y + 54xy² factories
Answer» i hope it helps you plz vye support krdo

1.

8x³ + 27 y ³+ 36x²y + 54xy² factories

Answer»

i hope it helps you plz vye support krdo

Discussion

2.	Convert into rupees a)655p b)2550p
Answer» ANSWER: a) 6rupees 55paise(6.55) B) 25rupees 5paise (25.5)

2.

Convert into rupees a)655p b)2550p

Answer»

ANSWER:

a) 6rupees 55paise(6.55)

B) 25rupees 5paise (25.5)

Discussion

3.	A triangle has two sides a = 1cm and b=2 cm. How fast is the thirdside c increasing when the angle a between the given sides is 60°and is increasing at the rate of 3° per second ? [Hint : Use cosinerule]lit&
Answer» ANSWER: RATE of increase of 3RD SIDE dc/dt = 3 cm/sec.

3.

A triangle has two sides a = 1cm and b=2 cm. How fast is the thirdside c increasing when the angle a between the given sides is 60°and is increasing at the rate of 3° per second ? [Hint : Use cosinerule]lit&

Answer»

ANSWER:

RATE of increase of 3RD SIDE dc/dt = 3 cm/sec.

Discussion

4.	71. A car moves with a speed of 80 km/h. Whatis the speed (in m/s) of the car(1) 22(2) 8g(3) 20(4)99dimits whicin
Answer» Step-by-step explanation: when the speed is changed from km/h to m/s than we will multiply the given speed ×5/18 speed of car =80 km/h speed of car in m/s= 80×5/18= 22 m/s hope it was HELPFUL please MARK my answer as brainlist

4.

71. A car moves with a speed of 80 km/h. Whatis the speed (in m/s) of the car(1) 22(2) 8g(3) 20(4)99dimits whicin

Answer»

Step-by-step explanation:

when the speed is changed from km/h to m/s than we will multiply the given speed ×5/18

speed of car =80 km/h

speed of car in m/s= 80×5/18= 22 m/s

hope it was HELPFUL please MARK my answer as brainlist

Discussion

5.	73. राजीव ने 12% वार्षिक ब्याज की दर से कुछ रुपए उधारलिए तथा पांच वर्ष बाद उसने ब्याज और मूलधन कोमिलाकर 7,680 रु. अदा किया, तो राजीव को कितनेरुपए ब्याज के रूप में देने पडे?
Answer» Answer: 921.6 ब्याज देना होगा Step-by-step EXPLANATION: explanation ke liye thanks or STAR KARO or MAKE me brain list

5.

73. राजीव ने 12% वार्षिक ब्याज की दर से कुछ रुपए उधारलिए तथा पांच वर्ष बाद उसने ब्याज और मूलधन कोमिलाकर 7,680 रु. अदा किया, तो राजीव को कितनेरुपए ब्याज के रूप में देने पडे?

Answer»

Answer:

921.6 ब्याज देना होगा

Step-by-step EXPLANATION:

explanation ke liye thanks or STAR KARO or MAKE me brain list

Discussion

6.	2table :data on the heights (in cm) of 50 girls of a3. TH3Height (in cm)Less than 140Number of girlsLess than 1454Less than 15011Less than 15529)Less than 1604046Less than 16550Find the median height of the girls.the sum of number
Answer» ANSWER: LEARNING BECOMES a friend to a traveller because it alone guides the traveller about RIGHT and wrong and it is only thing that accompanies him.

6.

2table :data on the heights (in cm) of 50 girls of a3. TH3Height (in cm)Less than 140Number of girlsLess than 1454Less than 15011Less than 15529)Less than 1604046Less than 16550Find the median height of the girls.the sum of number

Answer»

ANSWER:

LEARNING BECOMES a friend to a traveller because it alone guides the traveller about RIGHT and wrong and it is only thing that accompanies him.

Discussion

7.	In triangle ABC the bisectors of angle B and angle C interest each other at point O prove that twice of angle BOC=180+(180-angle B +angle C)
Answer» ANSWER: PLEASE SHARE IMAGE of it than I can FIND answer

7.

In triangle ABC the bisectors of angle B and angle C interest each other at point O prove that twice of angle BOC=180+(180-angle B +angle C)

Answer»

ANSWER:

PLEASE SHARE IMAGE of it than I can FIND answer

Discussion

8.	B] Solve the following examplesil In a circle with centre, P, PM J QRpri = 12 cm , PR - 20cm find QRans. pls give answer step by step
Answer» ANSWER: igogigibogigo Step-by-step explanation: 6edufigogogg

8.

B] Solve the following examplesil In a circle with centre, P, PM J QRpri = 12 cm , PR - 20cm find QRans. pls give answer step by step

Answer»

ANSWER:

igogigibogigo

Step-by-step explanation:

6edufigogogg

Discussion

9.	B = 1 and c = 3 jsjdndkfkkff
Answer» ANSWER: *the* *answer* is Step-by-step EXPLANATION: b=1 c=3 RATE my answer 5 STARS

9.

B = 1 and c = 3 jsjdndkfkkff

Answer»

ANSWER:

the answer is

Step-by-step EXPLANATION:

b=1

c=3

RATE my answer 5 STARS

Discussion

10.	Draw a Triangle .Such as A , B C .
Answer» $\setlength{\unitlength}{1 cm}\begin{picture}(0,0)\thicklines\qbezier(1, 0)(1,0)(3,3)\qbezier(5,0)(5,0)(3,3)\qbezier(5,0)(1,0)(1,0)\put(2.85,3.2){$\bf A$}\put(0.5,-0.3){$\bf C$}\put(5.2,-0.3){$\bf B$}\end{picture}$ NOTE : KINDLY , SEE the ANSWER through WEB .

10.

Draw a Triangle .Such as A , B C .

Answer»

$\setlength{\unitlength}{1 cm}\begin{picture}(0,0)\thicklines\qbezier(1, 0)(1,0)(3,3)\qbezier(5,0)(5,0)(3,3)\qbezier(5,0)(1,0)(1,0)\put(2.85,3.2){$\bf A$}\put(0.5,-0.3){$\bf C$}\put(5.2,-0.3){$\bf B$}\end{picture}$

NOTE : KINDLY , SEE the ANSWER through WEB .

Discussion

11.	In a village, the number of female is greater than the number of males by 31500. If the ratio of the number of females and males is 8:5, find the number of females and males
Answer» $\begin{gathered}\begin{gathered}\bf \:Given - \begin{cases} &\sf{Number_{(females)} - Number_{(males)} = 31500} \\ &\sf{Number_{(females)}:Number_{(males)} = 8:5 } \end{cases}\end{gathered}\end{gathered}$ $\begin{gathered}\begin{gathered}\bf \:To\:find - \begin{cases} &\sf{Number_{(females)} \: and \: Number_{(males)}} \end{cases}\end{gathered}\end{gathered}$ Basic Concept Used :- Writing SYSTEMS of Linear Equations from Word Problem. Step :- 1 Understand the problem. Understand all the words used in stating the problem. Understand what you are asked to find. Step :- 2 TRANSLATE the problem to an equation. Assign a VARIABLE (or variables) to represent the unknown. Clearly state what the variable represents. Step :- 3 Carry out the plan and SOLVE the problem. $\large\underline{\bold{Solution-}}$ Given that Number of females to the number of males are in the ratio 8 : 5. So, $\begin{gathered}\begin{gathered}\bf \: Let \: \begin{cases} &\sf{Number_{(females)} \: = \: 8x} \\ &\sf{Number_{(males)} \: = \: 5x} \end{cases}\end{gathered}\end{gathered}$ Further, It is given that The number of female is greater than the number of males by 31500. $\rm :\longmapsto\:Number_{(females)} - Number_{(males)} = 31500$ $\rm :\longmapsto\:8x - 5x = 31500$ $\rm :\longmapsto\:3x = 31500$ $\bf\implies \:x = 10500$ $\begin{gathered}\begin{gathered}\bf \: Hence - \: \begin{cases} &\sf{Number_{(females)} \: = \: 8x = 84000} \\ &\sf{Number_{(males)} \: = \: 5x = 52500} \end{cases}\end{gathered}\end{gathered}$

11.

In a village, the number of female is greater than the number of males by 31500. If the ratio of the number of females and males is 8:5, find the number of females and males

Answer»

$\begin{gathered}\begin{gathered}\bf \:Given - \begin{cases} &\sf{Number_{(females)} - Number_{(males)} = 31500} \\ &\sf{Number_{(females)}:Number_{(males)} = 8:5 } \end{cases}\end{gathered}\end{gathered}$

$\begin{gathered}\begin{gathered}\bf \:To\:find - \begin{cases} &\sf{Number_{(females)} \: and \: Number_{(males)}} \end{cases}\end{gathered}\end{gathered}$

Basic Concept Used :-

Writing SYSTEMS of Linear Equations from Word Problem.

Step :- 1 Understand the problem.

Understand all the words used in stating the problem.

Understand what you are asked to find.

Step :- 2 TRANSLATE the problem to an equation.

Assign a VARIABLE (or variables) to represent the unknown.

Clearly state what the variable represents.

Step :- 3 Carry out the plan and SOLVE the problem.

$\large\underline{\bold{Solution-}}$

Given that

Number of females to the number of males are in the ratio 8 : 5.

So,

$\begin{gathered}\begin{gathered}\bf \: Let \: \begin{cases} &\sf{Number_{(females)} \: = \: 8x} \\ &\sf{Number_{(males)} \: = \: 5x} \end{cases}\end{gathered}\end{gathered}$

Further,

It is given that

The number of female is greater than the number of males by 31500.

$\rm :\longmapsto\:Number_{(females)} - Number_{(males)} = 31500$

$\rm :\longmapsto\:8x - 5x = 31500$

$\rm :\longmapsto\:3x = 31500$

$\bf\implies \:x = 10500$

$\begin{gathered}\begin{gathered}\bf \: Hence - \: \begin{cases} &\sf{Number_{(females)} \: = \: 8x = 84000} \\ &\sf{Number_{(males)} \: = \: 5x = 52500} \end{cases}\end{gathered}\end{gathered}$

Discussion

12.	A die is rolled. Find the probability of getting a number greater than 5
Answer» Step-by-step EXPLANATION: The possible outcomes when a die thrown is {1,2,3,4,5,6}. Therefore, the number of possible outcomes of a die is 6. Now, the numbers greater than 1 between 1 to 6 are {2,3,4,5,6} then the number of favourable outcome is 5. Therefore, PROBABILITY P of GETTING a number greater than 5 is: P= 1 6 HENCE, the probability of getting a number greater than 5 is : 1 . 6

12.

A die is rolled. Find the probability of getting a number greater than 5

Answer»

Step-by-step EXPLANATION:

The possible outcomes when a die thrown is {1,2,3,4,5,6}. Therefore, the number of possible outcomes of a die is 6.

Now, the numbers greater than 1 between 1 to 6 are {2,3,4,5,6} then the number of favourable outcome is 5.

Therefore, PROBABILITY P of GETTING a number greater than 5 is:

P= 1

6

HENCE, the probability of getting a number greater than 5 is : 1 .

6

Discussion

13.	80 89 22 ? digit ansawar kya hoga
Answer» ANSWER: 29 is the answer of this QUESTION

13.

80 89 22 ? digit ansawar kya hoga

Answer»

ANSWER:

29 is the answer of this QUESTION

Discussion

14.	If 3 to the power 2 X + 1 divided by 9 is equals to 27 find x
Answer» he3hy8tfufihphor6dobld68eihlgywuglfueuocl

Discussion

15.	A box contains 6 blackand 4 white balls. Twoballs are drawn withoutat random from it. Theprobability that boththe balls are black is1/21/32/31/4Submit
Answer» ANSWER: 1/2 1/3 2/3 1/4 Step-by-step EXPLANATION: that is the answer

15.

A box contains 6 blackand 4 white balls. Twoballs are drawn withoutat random from it. Theprobability that boththe balls are black is1/21/32/31/4Submit

Answer»

ANSWER:

1/2 1/3 2/3 1/4

Step-by-step EXPLANATION:

that is the answer

Discussion

16.	3. An aquarium is in the form of a cuboid whose external measures are 70 cm x 28 cm x 35 cm. The base, side faces and back face are to be covered with coloured paper. Findthe area of the paper needed.
Answer» Answer: height = 35 CM. AREA of BACK face = l * h = 70 * 35 = 2450. = 6370 cm^2. pls MARK me as BRAINLIST

16.

3. An aquarium is in the form of a cuboid whose external measures are 70 cm x 28 cm x 35 cm. The base, side faces and back face are to be covered with coloured paper. Findthe area of the paper needed.

Answer»

Answer:

height = 35 CM. AREA of BACK face = l * h = 70 * 35 = 2450. = 6370 cm^2.

pls MARK me as BRAINLIST

Discussion

17.	33.In the figure of a cube;i) Which three faces intersectsthe vertex A?ii)Give all the edges that are parallel to the edge AB?iii) Which Vertex Is formed by the faces ABCD ADEF AND CDEH?iv)Give the edges that are neither parallel and not perpendicular to edgeBC?
Answer» ANSWER: rdghbbknnbgfggzghhjjhfaghshjdbgdvndi

17.

33.In the figure of a cube;i) Which three faces intersectsthe vertex A?ii)Give all the edges that are parallel to the edge AB?iii) Which Vertex Is formed by the faces ABCD ADEF AND CDEH?iv)Give the edges that are neither parallel and not perpendicular to edgeBC?

Answer»

ANSWER:

rdghbbknnbgfggzghhjjhfaghshjdbgdvndi

Discussion

18.	X^2+x-12=0 in formula method
Answer» ANSWER: comparring EQUATION with ax²+bx+c a=1 b=1 c=-12 b²-4ac: 1²-4.1.-12 =-4.-12 =--48

18.

X^2+x-12=0 in formula method

Answer»

ANSWER:

comparring EQUATION with ax²+bx+c

a=1 b=1 c=-12

b²-4ac: 1²-4.1.-12

=-4.-12

=--48

Discussion

19.	Find the principal solution of cos 2x=1
Answer» COS 2x=1 2x = 2kπ , K = Z x = kπ. , K= Z

19.

Find the principal solution of cos 2x=1

Answer»

COS 2x=1

2x = 2kπ , K = Z

x = kπ. , K= Z

Discussion

20.	-7p²+32p-8=0 find the roots and the value of pplz tell the correct answer
Answer» ANSWER: bbbbbbb+bbbbbbbhhhhhhhhh Step-by-step EXPLANATION: IAN rokstar

20.

-7p²+32p-8=0 find the roots and the value of pplz tell the correct answer

Answer»

ANSWER:

bbbbbbb+bbbbbbbhhhhhhhhh

Step-by-step EXPLANATION:

IAN rokstar

Discussion

21.	How many slanting line horizontal, verticle line in kite shape
Answer» SLANTING LINE=4 horizontal line =1 vertical line =1

21.

How many slanting line horizontal, verticle line in kite shape

Answer»

SLANTING LINE=4

horizontal line =1

vertical line =1

Discussion

22.	express the value of teta interms of x using the following data x 40 50 60 70 80 90 teta 184 204 226 270 276 304 find teta at x=43
Answer» ANSWER: hdjxjdjjsjsjxjdjskdjgwjhwjxhhdhxnd

22.

express the value of teta interms of x using the following data x 40 50 60 70 80 90 teta 184 204 226 270 276 304 find teta at x=43

Answer»

ANSWER:

hdjxjdjjsjsjxjdjskdjgwjhwjxhhdhxnd

Discussion

23.	Examine for maxima and minima the function f(x)= x3 – 9x2 + 24x + 7.us. Maximum at x=2 and maximum value = 27, Minimum at x=4 and minimumvalue = 23.
Answer» Step-by-step explanation: The ultrasonic WAVES travel through the water and after striking the target the BEAM is reflected from the SEABED and is RECEIVED by an under-water detector (mounted on the SHIP). The detector then converts the waves into electrical signals which are properly interpreted.

23.

Examine for maxima and minima the function f(x)= x3 – 9x2 + 24x + 7.us. Maximum at x=2 and maximum value = 27, Minimum at x=4 and minimumvalue = 23.

Answer»

Step-by-step explanation:

The ultrasonic WAVES travel through the water and after striking the target the BEAM is reflected from the SEABED and is RECEIVED by an under-water detector (mounted on the SHIP). The detector then converts the waves into electrical signals which are properly interpreted.

Discussion

24.	If circles are drawn with each side of a triangle of sides 5cm,12cm and 38cm as diameter than with respect to each circle where would be the third vertex answer with picture
Answer» Step-by-step EXPLANATION: The ultrasonic waves travel through the water and after striking the target the beam is reflected from the seabed and is received by an under-water detector (mounted on the ship). The detector then CONVERTS the waves into electrical SIGNALS which are properly INTERPRETED.

24.

If circles are drawn with each side of a triangle of sides 5cm,12cm and 38cm as diameter than with respect to each circle where would be the third vertex answer with picture

Answer»

Step-by-step EXPLANATION:

The ultrasonic waves travel through the water and after striking the target the beam is reflected from the seabed and is received by an under-water detector (mounted on the ship). The detector then CONVERTS the waves into electrical SIGNALS which are properly INTERPRETED.

Discussion

25.	Find the ratio in which the line joining (-2, 5) and (-5,-6) is divided by the line 2x+y=-4.Hence find the point of intersection.
Answer» Solution Given :- point of LINE joining , p(-2,5) & q(-5,-6) Equation of line , 2x + y = -4 _______(1) Find :- Intersection point of both line Explanation Let, the line 2x + y = -4 ___(1), devide the line statement joining the point P(-2,5) & q(-5 , -6) in the ratio m : 1. Let, the intersection point be O. then, Co-ordinatotr of O given by, = O[ {m(y") + 1(y')}/(m + 1) , {m(X") + 1(x')}/(m + 1) ] Where, x ' = -2 x" = -5 y' = 5 y" = -6 So, Now ==> O[ m(-6) + (5)}/(m + 1) , { m(-5) + (-2)}/(m + 1)] ==> O[ (-6m + 5)/(m + 1) , ( -5m - 2)/(m + 1) ] Here, O interesect line 2x + y = -4 Then, ==.> 2[ -6m + 5)/(m + 1) ] + (-5m - 2)/(m + 1) = -4 ==> -12m + 10 - 5m - 2 = -4(m + 1) ==> -17m + 8 = -4M - 4 ==> -17m + 4m = -4 - 8 ==> -13m = -12 ==> m = 12/13 Or, ==> m:1 = 12:13 Hence Ratio will be = 12:13 _______________

25.

Find the ratio in which the line joining (-2, 5) and (-5,-6) is divided by the line 2x+y=-4.Hence find the point of intersection.

Answer»

Solution

Given :-

point of LINE joining , p(-2,5) & q(-5,-6)
Equation of line , 2x + y = -4 _______(1)

Find :-

Intersection point of both line

Explanation

Let, the line 2x + y = -4 ___(1), devide the line statement joining the point P(-2,5) & q(-5 , -6) in the ratio m : 1.

Let, the intersection point be O.

then,

Co-ordinatotr of O given by,

= O[ {m(y") + 1(y')}/(m + 1) , {m(X") + 1(x')}/(m + 1) ]

Where,

x ' = -2
x" = -5
y' = 5
y" = -6

So, Now

==> O[ m(-6) + (5)}/(m + 1) , { m(-5) + (-2)}/(m + 1)]

==> O[ (-6m + 5)/(m + 1) , ( -5m - 2)/(m + 1) ]

Here, O interesect line 2x + y = -4

Then,

==.> 2[ -6m + 5)/(m + 1) ] + (-5m - 2)/(m + 1) = -4

==> -12m + 10 - 5m - 2 = -4(m + 1)

==> -17m + 8 = -4M - 4

==> -17m + 4m = -4 - 8

==> -13m = -12

==> m = 12/13

Or,

==> m:1 = 12:13

Hence

Ratio will be = 12:13

_______________

Discussion

26.	Find the orthocentre of the triangle with vertices (5,-2) (-1, 2) and (1.4)
Answer» Answer: Let A = (5, -2), B= (-1, 2), C= (1, 4) First write the equation of the line BC. TAKE any general point D on BC. FIND the equation of the line AD. Use (Slope of AD)* (Slope of BC) = -1. Do the same THING for line AB or AC. Find the intersection point of the lines AD and AE (where E lies on AB or AC whichever you choose). That intersection point will be your required orthocentre.

26.

Find the orthocentre of the triangle with vertices (5,-2) (-1, 2) and (1.4)

Answer»

Answer:

Let A = (5, -2), B= (-1, 2), C= (1, 4)

First write the equation of the line BC. TAKE any general point D on BC. FIND the equation of the line AD.

Use (Slope of AD)* (Slope of BC) = -1.

Do the same THING for line AB or AC.

Find the intersection point of the lines AD and AE (where E lies on AB or AC whichever you choose).

That intersection point will be your required orthocentre.

Discussion

27.	Sum of two numbers is 30 and its difference is 16, thesmallest number will be what? (5, 6, 7)
Answer» ANSWER: the answer is 5 Step-by-step explanation: 5<6<7

27.

Sum of two numbers is 30 and its difference is 16, thesmallest number will be what? (5, 6, 7)

Answer»

ANSWER:

the answer is 5

Step-by-step explanation:

5<6<7

Discussion

28.	Dx + 2x = 2 x2 y 2 dy
Answer» Answer: 14x Step-by-step EXPLANATION: PLEASE MARK me as BRAINLIST

28.

Dx + 2x = 2 x2 y 2 dy

Answer»

Answer:

14x

Step-by-step EXPLANATION:

PLEASE MARK me as BRAINLIST

Discussion

29.	Express the following as rational number (-4/5)^3
Answer» Answer: 8 × 364 + 84 × 636 FIND the PRODUCT

29.

Express the following as rational number (-4/5)^3

Answer»

Answer:

8 × 364 + 84 × 636 FIND the PRODUCT

Discussion

30.	3978:72:5172:? what will come in place of question mark
Answer» Step-by-step explanation: 93.61 is the ANSWER for above QUESTION

30.

3978:72:5172:? what will come in place of question mark

Answer»

Step-by-step explanation:

93.61 is the ANSWER for above QUESTION

Discussion

31.	Thrice the sum of two numbers is 18 if one of them is 4 , find the other
Answer» Answer: 2 Step-by-step EXPLANATION: MARK me as the BRAINLIEST

31.

Thrice the sum of two numbers is 18 if one of them is 4 , find the other

Answer»

Answer:

2

Step-by-step EXPLANATION:

MARK me as the BRAINLIEST

Discussion

32.	DECIMALPERCENTITEMFRACTION500mlToyo375/5000.7575%Suka275ml130/2750.472747.27%Patis100ml30/1000.330%5. Prom your record, enumerate the items from the most consumed to the leastconsumed by your family
Answer» ANSWER: u99teuol rjr jtktjfkvjtkfjthtirirjtjrirififiririririr

32.

DECIMALPERCENTITEMFRACTION500mlToyo375/5000.7575%Suka275ml130/2750.472747.27%Patis100ml30/1000.330%5. Prom your record, enumerate the items from the most consumed to the leastconsumed by your family

Answer»

ANSWER:

u99teuol

rjr jtktjfkvjtkfjthtirirjtjrirififiririririr

Discussion

33.	5/6+2/3-4/9=M. Determine the value of M
Answer» ANSWER: $\frac{5}{6} + \frac{2}{3} - \frac{4}{9} = M \\ \frac{15 + 12 - 8}{18} = M \\ \frac{27 - 8}{18} =M \\ \frac{19}{18} =M \\ 1 \frac{1}{18} =M$ *HOPE* *this* *answer* *HELPS* *you* *out*.

33.

5/6+2/3-4/9=M. Determine the value of M

Answer»

ANSWER:

$\frac{5}{6} + \frac{2}{3} - \frac{4}{9} = M \\ \frac{15 + 12 - 8}{18} = M \\ \frac{27 - 8}{18} =M \\ \frac{19}{18} =M \\ 1 \frac{1}{18} =M$

HOPE this answer HELPS you out.

Discussion

34.	Sana and amna went to the market to buy stationary amna bought 4 pencils and 2 rulers and paid rs 32 Sana bought 6 pencils and paid 48 find the cost of each pencil and each eraser
Answer» Your *ANSWER* is Rs.8 *PER* *PENCIL*

34.

Sana and amna went to the market to buy stationary amna bought 4 pencils and 2 rulers and paid rs 32 Sana bought 6 pencils and paid 48 find the cost of each pencil and each eraser

Answer»

Your ANSWER is Rs.8 PER PENCIL

Discussion

35.	Prove that: sin 60 = 2tan 30 ÷ 1 + tan²30 = /3÷2
Answer» Step-by-step EXPLANATION: so FIRSTLY taking the LHS:2 tan 30/1 +tan^2 30 Next putting the value of tan 30 i.e √3 2√3/ 1+ (√3)^2 2√3/1+ 3. { Since, [√3]^2 =3} 2√3 /4 √3/2. (SINCE √3/2 = sin 60) Sin60 Since LHS=RHS, HENCE PROVED

35.

Prove that: sin 60 = 2tan 30 ÷ 1 + tan²30 = /3÷2

Answer»

Step-by-step EXPLANATION:

so FIRSTLY taking the LHS:2 tan 30/1 +tan^2 30

Next putting the value of tan 30 i.e √3

2√3/ 1+ (√3)^2

2√3/1+ 3. { Since, [√3]^2 =3}

2√3 /4

√3/2. (SINCE √3/2 = sin 60)

Sin60

Since LHS=RHS,

HENCE PROVED

Discussion

36.	Given that p (A) =1/3, P(B) = V4, P (A/B) =1/6the probability P (B/A)is equal to -
Answer» ANSWER: B gxgkxtixycufupstiatdufufuyd

36.

Given that p (A) =1/3, P(B) = V4, P (A/B) =1/6the probability P (B/A)is equal to -

Answer»

ANSWER:

B gxgkxtixycufupstiatdufufuyd

Discussion

37.	10std algebra question please give right steps quickly. 5m-3m=19;6n=-7
Answer» ANSWER: gigigksvsjsvisvisvisvksgksvisskvvskvdkbkdvdi

37.

10std algebra question please give right steps quickly. 5m-3m=19;6n=-7

Answer»

ANSWER:

gigigksvsjsvisvisvisvksgksvisskvvskvdkbkdvdi

Discussion

38.	Beyour mombsSI (ze + ₂70drawal , ATW-Kotak ATM Withdrawal , BP-Bill Pay transaction , CDM-Kotak Cash Deposit Mac[email protected] transaction, OS-Online Shopping transaction, PB-Phone Banking, PCI/Petion , VISACCPAY-Visa Credit Card Payment
Answer» ANSWER: that is PROFIT and LOSS CHAPTER I don't KNOW

38.

Beyour mombsSI (ze + ₂70drawal , ATW-Kotak ATM Withdrawal , BP-Bill Pay transaction , CDM-Kotak Cash Deposit Mac[email protected] transaction, OS-Online Shopping transaction, PB-Phone Banking, PCI/Petion , VISACCPAY-Visa Credit Card Payment

Answer»

ANSWER:

that is PROFIT and LOSS CHAPTER I don't KNOW

Discussion

39.	MS* PRACTICE TIME1. Arrange the numbers written on the flags in increasing order:1122567784618 50 0001331754)142 282738593400000435774
Answer» ANSWER: sryyy Step-by-step EXPLANATION: I REALLY don't KNOW the answer of it

39.

MS* PRACTICE TIME1. Arrange the numbers written on the flags in increasing order:1122567784618 50 0001331754)142 282738593400000435774

Answer»

ANSWER:

sryyy

Step-by-step EXPLANATION:

I REALLY don't KNOW the answer of it

Discussion

40.	11025÷10 step by step explaination
Answer» MARK me as BRILLIANT 1102.5

40.

11025÷10 step by step explaination

Answer»

MARK me as BRILLIANT

1102.5

Discussion

41.	40रूपये का 300 पैसे से. anupat gyat kr
Answer» Answer: 340 RUPEES hai Step-by-step EXPLANATION:

41.

40रूपये का 300 पैसे से. anupat gyat kr

Answer»

Answer:

340 RUPEES hai

Step-by-step EXPLANATION:

Discussion

42.	5/8m + 9 - 3/8m - 15 Pleaseeeee help
Answer» ANSWER: Step-by-step EXPLANATION: 5/8m + 9 - 3/8m -15 = 5/8m - 3/8m + 9 - 15 = 2/8m - 6 = 1/4m - 6 Hope it helps!!

42.

5/8m + 9 - 3/8m - 15 Pleaseeeee help

Answer»

ANSWER:

Step-by-step EXPLANATION:

5/8m + 9 - 3/8m -15

= 5/8m - 3/8m + 9 - 15

= 2/8m - 6

= 1/4m - 6

Hope it helps!!

Discussion

43.	3If sin A =4then find the value of sec A.
Answer» ANSWER: SINA = 4/3 secA = 3/4 [because secA = 1/sinA]

43.

3If sin A =4then find the value of sec A.

Answer»

ANSWER:

SINA = 4/3

secA = 3/4

[because

secA = 1/sinA]

Discussion

44.	3 २4. Sketch the graph of y = - x² + 4x - 5
Answer» SEE the achievement please MARK it as BRAINLIST

44.

3 २4. Sketch the graph of y = - x² + 4x - 5

Answer»

SEE the achievement

please MARK it as BRAINLIST

Discussion

45.	27. Simplify1)(2/3)2+(1/3)ii) (3/32)iii) 1001
Answer» ANSWER: (2/3)2+(1/3)=2×2/3+1/3=4/3+1/3=5/3=1.66666667 (3/32)=0.09375 1001=1001

45.

27. Simplify1)(2/3)2+(1/3)ii) (3/32)iii) 1001

Answer»

ANSWER:

(2/3)2+(1/3)=2×2/3+1/3=4/3+1/3=5/3=1.66666667
(3/32)=0.09375
1001=1001

Discussion

46.	Ora^2(b+c) + b^2{c+a) +c^2(a+b) =2/9 (a+b+c)?
Answer» a+B+c=9 and a 2 +b 2 +c 2 =35 Using FORMULA, (a+b+c) 2 =a 2 +b 2 +c 2 +2(ab+bc+ca) 9 2 =35+2(ab+bc+ca) 2(ab+bc+ca)=81−35=46 (ab+bc+ca)=23 using formula, (a 3 +b 3 +c 3 )−3abc=(a 2 +b 2 +c 2 −ab−bc−ca)(a+b+c) a 3 +b 3 +c 3 −3abc=(35−23)×9=9×12=108

46.

Ora^2(b+c) + b^2{c+a) +c^2(a+b) =2/9 (a+b+c)?

Answer»

a+B+c=9 and a

2

+b

2

+c

2

=35

Using FORMULA,

(a+b+c)

2

=a

2

+b

2

+c

2

+2(ab+bc+ca)

9

2

=35+2(ab+bc+ca)

2(ab+bc+ca)=81−35=46

(ab+bc+ca)=23

using formula,

(a

3

+b

3

+c

3

)−3abc=(a

2

+b

2

+c

2

−ab−bc−ca)(a+b+c)

a

3

+b

3

+c

3

−3abc=(35−23)×9=9×12=108

Discussion

47.	If siny = xsin(x+y)Then, prove dy/dx= {sin(x+y)+xcos(x+y)} / {cosy-xcos(x+y)}
Answer» $\large\underline{\sf{Given \:Question - }}$ $\sf \: siny = <klux>X</klux> \: sin(x + y)$ $\large\underline{\sf{To\:Prove - }}$ $\sf \: \dfrac{dy}{dx} = \dfrac{sin(x + y) + x \: cos(x + y)}{cosy - xcos(x + y)}$ $\large\begin{gathered}{\sf{{\underline{Formula \: Used - }}}} \end{gathered}$ $1. \: \: \boxed{ \bf{ \: \dfrac{d}{dx}u.v = v\dfrac{d}{dx}u + u\dfrac{d}{dx}v}}$ $2. \: \: \boxed{ \bf{ \: \dfrac{d}{dx}sinx = cosx}}$ $3 \: \: \boxed{ \bf{ \: \dfrac{d}{dx}cosx = - \: sinx}}$ $4. \: \: \boxed{ \bf{ \: \dfrac{d}{dx}x = 1}}$ $\large\underline{\sf{Solution-}}$ Given that $\rm :\longmapsto\: \bf \: siny = x \: sin(x + y)$ Differentiating both SIDES W. r. t. x, we get $\rm :\longmapsto\:\dfrac{d}{dx}siny = \dfrac{d}{dx}\bigg( x \: sin(x + y)\bigg)$ $\rm :\longmapsto\:cosy\dfrac{dy}{dx} = x\dfrac{d}{dx}sin(x + y) + sin(x + y)\dfrac{d}{dx}x$ $\rm :\longmapsto\:cosy\dfrac{dy}{dx} = xcos(x + y)\dfrac{d}{dx}(x + y) + sin(x + y)$ $\rm :\longmapsto\:cosy\dfrac{dy}{dx} = xcos(x + y)\bigg(1 + \dfrac{dy}{dx} \bigg) + sin(x + y)$ $\rm :\longmapsto\:cosy\dfrac{dy}{dx} = xcos(x + y) + xcos(x + y)\dfrac{dy}{dx} + sin(x + y)$ $\rm :\longmapsto\:\dfrac{dy}{dx}\bigg(cosy - xcos(x + y) \bigg) = xcos(x + y) + sin(x + y)$ $\bf\implies \: \: \dfrac{dy}{dx} = \dfrac{sin(x + y) + x \: cos(x + y)}{cosy - xcos(x + y)}$ ${\boxed{\bf{Hence, Proved}}}$ ─━─━─━─━─━─━─━─━─━─━─━─━─ Additional INFORMATION :- $\boxed{ \bf{ \: \dfrac{d}{dx} {x}^{n} = {nx}^{ n- 1} }}$ $\boxed{ \bf{ \: \dfrac{d}{dx}logx = \dfrac{1}{x} }}$ $\boxed{ \bf{ \: \dfrac{d}{dx} {e}^{x} = {e}^{x} }}$ $\boxed{ \bf{ \: \dfrac{d}{dx} {a}^{x} = {a}^{x} loga}}$ $\boxed{ \bf{ \: tanx = {sec}^{2} x}}$ $\boxed{ \bf{ \: \dfrac{d}{dx}cotx = - {cosec}^{2} x}}$ $\boxed{ \bf{ \: \dfrac{d}{dx}k = 0}}$

47.

If siny = xsin(x+y)Then, prove dy/dx= {sin(x+y)+xcos(x+y)} / {cosy-xcos(x+y)}

Answer»

$\large\underline{\sf{Given \:Question - }}$

$\sf \: siny = <klux>X</klux> \: sin(x + y)$

$\large\underline{\sf{To\:Prove - }}$

$\sf \: \dfrac{dy}{dx} = \dfrac{sin(x + y) + x \: cos(x + y)}{cosy - xcos(x + y)}$

$\large\begin{gathered}{\sf{{\underline{Formula \: Used - }}}} \end{gathered}$

$1. \: \: \boxed{ \bf{ \: \dfrac{d}{dx}u.v = v\dfrac{d}{dx}u + u\dfrac{d}{dx}v}}$

$2. \: \: \boxed{ \bf{ \: \dfrac{d}{dx}sinx = cosx}}$

$3 \: \: \boxed{ \bf{ \: \dfrac{d}{dx}cosx = - \: sinx}}$

$4. \: \: \boxed{ \bf{ \: \dfrac{d}{dx}x = 1}}$

$\large\underline{\sf{Solution-}}$

Given that

$\rm :\longmapsto\: \bf \: siny = x \: sin(x + y)$

Differentiating both SIDES W. r. t. x, we get

$\rm :\longmapsto\:\dfrac{d}{dx}siny = \dfrac{d}{dx}\bigg( x \: sin(x + y)\bigg)$

$\rm :\longmapsto\:cosy\dfrac{dy}{dx} = x\dfrac{d}{dx}sin(x + y) + sin(x + y)\dfrac{d}{dx}x$

$\rm :\longmapsto\:cosy\dfrac{dy}{dx} = xcos(x + y)\dfrac{d}{dx}(x + y) + sin(x + y)$

$\rm :\longmapsto\:cosy\dfrac{dy}{dx} = xcos(x + y)\bigg(1 + \dfrac{dy}{dx} \bigg) + sin(x + y)$

$\rm :\longmapsto\:cosy\dfrac{dy}{dx} = xcos(x + y) + xcos(x + y)\dfrac{dy}{dx} + sin(x + y)$

$\rm :\longmapsto\:\dfrac{dy}{dx}\bigg(cosy - xcos(x + y) \bigg) = xcos(x + y) + sin(x + y)$

$\bf\implies \: \: \dfrac{dy}{dx} = \dfrac{sin(x + y) + x \: cos(x + y)}{cosy - xcos(x + y)}$

${\boxed{\bf{Hence, Proved}}}$

─━─━─━─━─━─━─━─━─━─━─━─━─

Additional INFORMATION :-

$\boxed{ \bf{ \: \dfrac{d}{dx} {x}^{n} = {nx}^{ n- 1} }}$

$\boxed{ \bf{ \: \dfrac{d}{dx}logx = \dfrac{1}{x} }}$

$\boxed{ \bf{ \: \dfrac{d}{dx} {e}^{x} = {e}^{x} }}$

$\boxed{ \bf{ \: \dfrac{d}{dx} {a}^{x} = {a}^{x} loga}}$

$\boxed{ \bf{ \: tanx = {sec}^{2} x}}$

$\boxed{ \bf{ \: \dfrac{d}{dx}cotx = - {cosec}^{2} x}}$

$\boxed{ \bf{ \: \dfrac{d}{dx}k = 0}}$

Discussion

48.	Find the roots of the equation x + ax - bx - ab = 0
Answer» ANSWER: #0# op op op op op op op op op op

48.

Find the roots of the equation x + ax - bx - ab = 0

Answer»

ANSWER:

#0# op

op

Discussion

49.	Nto100% noonbsSI (zet 70IM Withdrawal , ATW-Kotak ATM Withdrawal , BP-Bill Pay transaction , CDM-Kotak Cash Deposit Macinsaction , [email protected] transaction , OS-Online Shopping transaction, PB-Phone Banking, PCI/Ptransaction , VISACCPAY-Visa Credit Card Payment
Answer» ANSWER: Calyx Corolla Androecium Gynoecium

49.

Nto100% noonbsSI (zet 70IM Withdrawal , ATW-Kotak ATM Withdrawal , BP-Bill Pay transaction , CDM-Kotak Cash Deposit Macinsaction , [email protected] transaction , OS-Online Shopping transaction, PB-Phone Banking, PCI/Ptransaction , VISACCPAY-Visa Credit Card Payment

Answer»

ANSWER:

Calyx

Corolla

Androecium

Gynoecium

Discussion

50.	6/11divide by sum 14/22
Answer» Answer: 6/11+14/22 12+14/22 28/22 14/11 ANS

50.

6/11divide by sum 14/22

Answer»

Answer:

6/11+14/22

12+14/22

28/22

14/11 ANS

Discussion

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6/11divide by sum 14/22