332354 + Interview Questions in Secondary School in Math

1.	Answer this question plz yrrr......fastly
Answer» ONG>ANSWER: option C..... ...... Step-by-step EXPLANATION: mark BRAINLIEST

1.

Answer this question plz yrrr......fastly

Answer» ONG>ANSWER:

option C..... ......

Step-by-step EXPLANATION:

mark BRAINLIEST

Discussion

2.	Write any five numbers prime and composite numbers
Answer» ong>Step-by-step explanation: The first FIVE prime numbers: 2, 3, 5, 7 and 11. There is five COMPOSITE number between 1 to 10. They are 4,6,8,9 and 10. pls mark as BRAINLIEST

2.

Write any five numbers prime and composite numbers

Answer»

ong>Step-by-step explanation:

The first FIVE prime numbers: 2, 3, 5, 7 and 11.
There is five COMPOSITE number between 1 to 10. They are 4,6,8,9 and 10.

pls mark as BRAINLIEST

Discussion

3.	Factorise=x2-38x+324(please answer it fast).
Answer» ONG>Step-by-step EXPLANATION: x2-38x+324 324-36x 324 can be WRITTEN as 36×9. 36(9-x) (taking 36 as common) 36 ; (9-x) are the factors.

3.

Factorise=x2-38x+324(please answer it fast).

Answer» ONG>Step-by-step EXPLANATION:

x2-38x+324

324-36x

324 can be WRITTEN as 36×9.

36(9-x) (taking 36 as common)

36 ; (9-x) are the factors.

Discussion

4.	Date21 SeptSection -1 classify rational orrational ar vorational(2-√27) + √27
Answer» ONG>ANSWER: RATIONAL no. Step-by-step explanation: 2(-√27+√27) 2 Henceit is a rational number. MARK AS BRAINLIEST!!

4.

Date21 SeptSection -1 classify rational orrational ar vorational(2-√27) + √27

Answer» ONG>ANSWER:

RATIONAL no.

Step-by-step explanation:

2(-√27+√27)

2

Henceit is a rational number.

MARK AS BRAINLIEST!!

Discussion

5.	5) The sum of all angles of quadrilateral is is 540. true or false
Answer» ong>Answer: False explanation : The SUM of all ANGLES of QUADRILATERAL is 360.

5.

5) The sum of all angles of quadrilateral is is 540. true or false

Answer»

ong>Answer:

False

explanation :

The SUM of all ANGLES of QUADRILATERAL is 360.

Discussion

6.	If two constants in a quadriatic polynomial is zero then prove that one of its zero is zero
Answer» ong>Step-by-step explanation: Check if b^2 – 4ac = 0, If it would be 0 then the quadratic polynomial has only 2 zero but they are equal to each other or we can SAY 1 zero. Here b is the COEFFICIENT of the variable with DEGREE 1, a is the coefficient of the variable with degree 2 and c is the constant term.

6.

If two constants in a quadriatic polynomial is zero then prove that one of its zero is zero

Answer»

ong>Step-by-step explanation:

Check if b^2 – 4ac = 0, If it would be 0 then the quadratic polynomial has only 2 zero but they are equal to each other or we can SAY 1 zero. Here b is the COEFFICIENT of the variable with DEGREE 1, a is the coefficient of the variable with degree 2 and c is the constant term.

Discussion

7.	In which right angle triangle the length of the hypotenuse issatinoal number
Answer» ong>Answer: NEW MEMBER. The length of the hypotenuse of a right angle triangle having sides that are each 1 cm long is the SQUARE root of 2 since a2 + b2 = c2 ACCORDING to Pythagorean theorem. But the square root of 2 is an irrational number.

7.

In which right angle triangle the length of the hypotenuse issatinoal number

Answer»

ong>Answer:

NEW MEMBER. The length of the hypotenuse of a right angle triangle having sides that are each 1 cm long is the SQUARE root of 2 since a2 + b2 = c2 ACCORDING to Pythagorean theorem. But the square root of 2 is an irrational number.

Discussion

8.	У 7'LZ2. Write all the terms of the following algebraic expressions.(i) 3x + 5y - 6(ii) 6a2 + 5b2-3cd(iii) 7 - 9x2 + 5y(iv)are
Answer» ONG>Answer: (i) 3x, 5Y& -6 (II) 6A2, 5b2 & -3cd (iii) 7, -9X2 & 5y

8.

У 7'LZ2. Write all the terms of the following algebraic expressions.(i) 3x + 5y - 6(ii) 6a2 + 5b2-3cd(iii) 7 - 9x2 + 5y(iv)are

Answer» ONG>Answer:

(i) 3x, 5Y& -6

(II) 6A2, 5b2 & -3cd

(iii) 7, -9X2 & 5y

Discussion

9.	Which unit will you choose express - ink in a pen
Answer» ONG>ANSWER: what is this can you POST it PROPERLY

9.

Which unit will you choose express - ink in a pen

Answer» ONG>ANSWER:

what is this can you POST it PROPERLY

Discussion

10.	The value of P (-1) when p(x) is x cube - 3 x square +5 is
Answer» ong>Answer:P> p(X)=x^3-3x^2+5 to find p(-1) p(-1)=(-1)^3-3×(-1)^2+5 we KNOW that -1 raised to any ODD numbers is -1 itself and same raised to any even number is 1. therefore, it becomes p(-1)=(-1)-[3×(1)]+5 = -1-3+5 = -4+5 = 1 p(-1)=1.. hence solved.

10.

The value of P (-1) when p(x) is x cube - 3 x square +5 is

Answer»

ong>Answer:P>

p(X)=x^3-3x^2+5

to find p(-1)

p(-1)=(-1)^3-3×(-1)^2+5

we KNOW that -1 raised to any ODD numbers is -1 itself and same raised to any even number is 1.

therefore, it becomes

p(-1)=(-1)-[3×(1)]+5

= -1-3+5

= -4+5

= 1

p(-1)=1..

hence solved.

Discussion

11.	7. If angle of incidence is 60°, then the angle of reflection will be (b) 60°(a) 30°(c) 120°ridence is1the angle
Answer» ngle of INCIDENCE is EQUAL to the ANGLE of REFLECTION, Angle of reflection= 60DEGREE

Discussion

12.	Cos15pi value from trignometry
Answer» ONG>ANSWER: icecreamyouscreamwescream Step-by-step EXPLANATION: icecreamyouscreamwescream

12.

Cos15pi value from trignometry

Answer» ONG>ANSWER:

icecreamyouscreamwescream

Step-by-step EXPLANATION:

icecreamyouscreamwescream

Discussion

13.	What is true about the line x +8=0 ?
Answer» ong>Answer: the correct answer of your QUESTION is x=-8. Step-by-step explanation: x+8=0. then 8 we turn on the LEFT side. x=-8

13.

What is true about the line x +8=0 ?

Answer»

ong>Answer:

the correct answer of your QUESTION is x=-8.

Step-by-step explanation:

x+8=0.

then 8 we turn on the LEFT side.

x=-8

Discussion

14.	1+2√3/2-√3. plz tell it's solution
Answer» ONG>ANSWER: $8 + 5 \sqrt{3}$ Step-by-step EXPLANATION: $\frac{1 + 2 \sqrt{3} }{2 - \sqrt{3} }$ $= \frac{(1 + 2 \sqrt{3})(2 + \sqrt{3})}{(2 - \sqrt{3})(2 + \sqrt{3})}$ $= \frac{2 + \sqrt{3} + 4 \sqrt{3} + 6 }{4 - 3}$ $= 8 + 5 \sqrt{3}$

14.

1+2√3/2-√3. plz tell it's solution

Answer» ONG>ANSWER:

$8 + 5 \sqrt{3}$

Step-by-step EXPLANATION:

$\frac{1 + 2 \sqrt{3} }{2 - \sqrt{3} }$

$= \frac{(1 + 2 \sqrt{3})(2 + \sqrt{3})}{(2 - \sqrt{3})(2 + \sqrt{3})}$

$= \frac{2 + \sqrt{3} + 4 \sqrt{3} + 6 }{4 - 3}$

$= 8 + 5 \sqrt{3}$

Discussion

15.	Raghav spent one - third of his money on a book. He spent three - fourth of the remainder on a pen. If the pen costs six rupees more than the books, then the total money he spent is ______ rupees. need the explanation !!
Answer» ong>Answer: 300 Rs Step-by-step explanation: we will use them method of assumption here. FIRST check the data to ease up the calculation.1/3 and 1/4 is given , LCM of 3 & 4 is 12. So let us ASSUME that the Total MONEY he has is 12units spend 1/3 on book =1/312=4 UNITS this means he spent 4 unit on book. Now he is left with 8 units ATQ he spends 3/4 of the remainder* on a pen (this statement has the main logic) it 8*3/4=6units on pen this means out of 12 units, he spend 6 units on pend & 4 units on book. NOW ATQ the difference b/w spending of book and pen is 60RS but according to our assumption it is 6units-4units=2units ATQ 2units is equal to 60rs according to statement 2units=60 1 unit=30 Total money He Spent= 10 units 10 units= 300Rs

15.

Raghav spent one - third of his money on a book. He spent three - fourth of the remainder on a pen. If the pen costs six rupees more than the books, then the total money he spent is ______ rupees. need the explanation !!

Answer»

ong>Answer: 300 Rs

Step-by-step explanation:

we will use them method of assumption here. FIRST check the data to ease up the calculation.1/3 and 1/4 is given , LCM of 3 & 4 is 12.

So let us ASSUME that the Total MONEY he has is 12units

spend 1/3 on book =1/3*12=4 UNITS

this means he spent 4 unit on book. Now he is left with 8 units

ATQ he spends 3/4 of the remainder on a pen (this statement has the main logic) it 8*3/4=6units on pen

this means out of 12 units, he spend 6 units on pend & 4 units on book.

NOW ATQ

the difference b/w spending of book and pen is 60RS but according to our assumption it is

6units-4units=2units

ATQ

2units is equal to 60rs according to statement

2units=60

1 unit=30

Total money He Spent= 10 units

10 units= 300Rs

Discussion

16.	Divide 12x cube-2x squre+x+1 by 3x+1
Answer» HELPED... PLZZ MARK me as BRAINLIST

Discussion

17.	8x²+7xy-6y²+4x²-3xy+2xy²-4x²+xy-y
Answer» ONG>Step-by-step explanation: Hope , you will GET a help. Make this brainliest and also vote

Discussion

18.	In triangle ABC ,D and E are points on AB and AC such that DE is parallel to BC. If AD = 4cm .DC =8cm and AE =4.5 cm ,find the length of CE 8cm9cm4.5cm4cm
Answer» ong>Step-by-step explanation: ANSWER. Step-by-step explanation: GIVEN: In Δ ABC, D and E are points on AB and AC , DE \|\| BC and AD = 2.4 CM, AE = 3.2 cm, DE = 2 cm and BE = 5 cm. Hence,BD = 3.6 cm and CE = 4.8 cm. OR 10th Maths Triangles Basic PROPORTIONALITY Theorem (Thales Theorem) In ABC, D and E are points... MATHS In △ABC, D and E are points on the sides AB and AC respectively such that DE \|\| BC. If AD = 6 cm, DB = 9 cm and AE = 8 cm, find AC. HARD Share Study later ANSWER The basic proportionality theorem states that if a line is drawn parallel to one side of a triangle and it intersects the other two sides at two distinct points then it divides the two sides in the same ratio. It is given that AD=6 cm, DB=9 cm and AE=8 cm. Using the basic proportionality theorem, we have ABAD=ACAE=BCDE⇒ABAD=ACAE⇒156=AC8⇒6AC=15×8⇒6AC=120⇒AC=6120=20 Hence, AC=20 cm.

18.

In triangle ABC ,D and E are points on AB and AC such that DE is parallel to BC. If AD = 4cm .DC =8cm and AE =4.5 cm ,find the length of CE 8cm9cm4.5cm4cm

Answer»

ong>Step-by-step explanation:

ANSWER. Step-by-step explanation: GIVEN: In Δ ABC, D and E are points on AB and AC , DE || BC and AD = 2.4 CM, AE = 3.2 cm, DE = 2 cm and BE = 5 cm. Hence,BD = 3.6 cm and CE = 4.8 cm.

OR

10th

Maths

Triangles

Basic PROPORTIONALITY Theorem (Thales Theorem)

In ABC, D and E are points...

MATHS

In △ABC, D and E are points on the sides AB and AC respectively such that DE || BC. If AD = 6 cm, DB = 9 cm and AE = 8 cm, find AC.

HARD

Share

Study later

ANSWER

The basic proportionality theorem states that if a line is drawn parallel to one side of a triangle and it intersects the other two sides at two distinct points then it divides the two sides in the same ratio.

It is given that AD=6 cm, DB=9 cm and AE=8 cm.

Using the basic proportionality theorem, we have

ABAD=ACAE=BCDE⇒ABAD=ACAE⇒156=AC8⇒6AC=15×8⇒6AC=120⇒AC=6120=20

Hence, AC=20 cm.

Discussion

19.	Represent -4/5 on number line
Answer» Step-by-step EXPLANATION: ----------.-----.-----.------.--- -1/5 -2/5 -3/5 -4/5 -5/5

19.

Represent -4/5 on number line

Answer»

Step-by-step EXPLANATION:

----------.-----.-----.------.---

-1/5 -2/5 -3/5 -4/5 -5/5

Discussion

20.	3) Find the product on (P-2q)power3
Answer» ong>Answer: .. SOLVED by our expert TEACHERS. You can also GET free sample papers, Notes, Important Questions. ... + 4y3, 5x – 4y + 3xy,. 4z – 15z2,. AB + bc + cd + da, pqr, p2q + pq2, 2p + 2Q.

20.

3) Find the product on (P-2q)power3

Answer»

ong>Answer:

.. SOLVED by our expert TEACHERS. You can also GET free sample papers, Notes, Important Questions. ... + 4y3, 5x – 4y + 3xy,. 4z – 15z2,. AB + bc + cd + da, pqr, p2q + pq2, 2p + 2Q.

Discussion

21.	Answer s for 9th class
Answer» ONG>Answer: What do mean ? PLS post with RELEVANT photos

21.

Answer s for 9th class

Answer» ONG>Answer:

What do mean ?

PLS post with RELEVANT photos

Discussion

22.	(iv) 20 पेंसिल का 3 दर्जन पेंसिल से।
Answer» ONG>Answer: 20:36 Step-by-step explanation: please MARK as BRAINLIEST

22.

(iv) 20 पेंसिल का 3 दर्जन पेंसिल से।

Answer» ONG>Answer:

20:36

Step-by-step explanation:

please MARK as BRAINLIEST

Discussion

23.	The distance of a(2 4) from x-axis with slove
Answer» ong>ANSWER: TERE ghar me ghode YE app USE mat KAR

23.

The distance of a(2 4) from x-axis with slove

Answer»

ong>ANSWER:

TERE ghar me ghode YE app USE mat KAR

Discussion

24.	Place commas correctly and write the numerals the question is is 63 million 300 32000 86
Answer» ONG>Answer: 3,003,200,086 hit LIKE ❤❤

24.

Place commas correctly and write the numerals the question is is 63 million 300 32000 86

Answer» ONG>Answer:

3,003,200,086

hit LIKE ❤❤

Discussion

25.	Is pace longer than cubit ?
Answer» ERGENT NUMBER between PACE and cubit os1.666666666666666667 this means that pace is bigger unit then cubit

Discussion

26.	Find the value of ( 3 + 5 w + 3 w ² ) ³
Answer» ong>ANSWER: SRY bro can't UNDERSTAND it

26.

Find the value of ( 3 + 5 w + 3 w ² ) ³

Answer»

ong>ANSWER:

SRY bro can't UNDERSTAND it

Discussion

27.	(3square+4square) whole power 1/2
Answer» ONG>Answer: 5 Step-by-step explanation: 3 square=9 4squre=16 9+16=25 5squre then WHOLE squre1/2=5

27.

(3square+4square) whole power 1/2

Answer» ONG>Answer:

5

Step-by-step explanation:

3 square=9

4squre=16

9+16=25

5squre then WHOLE squre1/2=5

Discussion

28.	In case of depreciation the rate law is replaced by her by 2 or minus 5 by 2 or minus 8
Answer» ONG>ANSWER: whatttttttttttttttttt

28.

In case of depreciation the rate law is replaced by her by 2 or minus 5 by 2 or minus 8

Answer» ONG>ANSWER:

whatttttttttttttttttt

Discussion

29.	If x= 1 2 Y= -3 -2 3 4. -1. -5 5 6. -4. 3 find z such that x+y-z=0
Answer» ONG>Step-by-step EXPLANATION: PUT the value of X and Y in the equation ( as there is no Z given , we will denote it as ZERO ) Then solve it yourself ....for your own benifits

29.

If x= 1 2 Y= -3 -2 3 4. -1. -5 5 6. -4. 3 find z such that x+y-z=0

Answer» ONG>Step-by-step EXPLANATION:

PUT the value of X and Y in the equation ( as there is no Z given , we will denote it as ZERO )

Then solve it yourself ....for your own benifits

Discussion

30.	Express the following as a power of 4
Answer» ong>Answer: plz attach a PHOTO or a FILE

30.

Express the following as a power of 4

Answer»

ong>Answer:

plz attach a PHOTO or a FILE

Discussion

31.	The measure of each exterior angle of a retangle Polegon is 40 degree how many sides does it have
Answer» ANSWER: it will be having 4 SIDES

31.

The measure of each exterior angle of a retangle Polegon is 40 degree how many sides does it have

Answer»

ANSWER:

it will be having 4 SIDES

Discussion

32.	If sin3θ=cosθ, then the value of θ is
Answer» ONG>Answer: 60 Step-by-step EXPLANATION: sin 30 is equals to cos60 the value is 1/2

32.

If sin3θ=cosθ, then the value of θ is

Answer» ONG>Answer:

60

Step-by-step EXPLANATION:

sin 30 is equals to cos60

the value is 1/2

Discussion

33.	That question only but with proper method
Answer» ONG>Answer: which QUESTION please POST correctly

Discussion

34.	The area of the triangle with vertices (-1 2) (4 0) and (3 9) is
Answer» RONG>Solution; Co-ordinates are :- ⇒( -1 , 2 ) , ( 4 , 0 ) and ( 3 , 9 ) The co-ordinates of the vertices of the given triangle are $\rm \implies A=(x_1= -1 ,y_1=2) ,B=(x_2=4 , y_2=0)\: and \: C=(x_3=3 , y_3=9)$ Area of triangle( ΔABC) $\rm=\dfrac{1}{2} \|x_1(y_2-y_3)+x_2(y_3-y_1)+x_3(y_1-y_2)\|$ $=\dfrac{1}{2} \|-1(0-9)+4(9-2)+3(2-0)\|$ $=\dfrac{1}{2} \|-1(-9)+4(7)+3(2)\|$ $=\dfrac{1}{2} \|9+28+6\|$ $=\dfrac{1}{2} \times43$ $\rm=21.5\:sq\:unit$ More formula related to this chapter ⇒ Distance formula $\rm AB=\sqrt{(x_2-x_1)^{2}+(y_2-y_1)^{2} }$ ⇒Section formula $\rm x_1=\dfrac{mx_2+nx_1}{m+n} ,x_2=\dfrac{my_2+ny_1}{m+n}$

34.

The area of the triangle with vertices (-1 2) (4 0) and (3 9) is

Answer» RONG>Solution;

Co-ordinates are :-

⇒( -1 , 2 ) , ( 4 , 0 ) and ( 3 , 9 )

The co-ordinates of the vertices of the given triangle are

$\rm \implies A=(x_1= -1 ,y_1=2) ,B=(x_2=4 , y_2=0)\: and \: C=(x_3=3 , y_3=9)$

Area of triangle( ΔABC)

$\rm=\dfrac{1}{2} |x_1(y_2-y_3)+x_2(y_3-y_1)+x_3(y_1-y_2)|$

$=\dfrac{1}{2} |-1(0-9)+4(9-2)+3(2-0)|$

$=\dfrac{1}{2} |-1(-9)+4(7)+3(2)|$

$=\dfrac{1}{2} |9+28+6|$

$=\dfrac{1}{2} \times43$

$\rm=21.5\:sq\:unit$

More formula related to this chapter

⇒ Distance formula

$\rm AB=\sqrt{(x_2-x_1)^{2}+(y_2-y_1)^{2} }$

⇒Section formula

$\rm x_1=\dfrac{mx_2+nx_1}{m+n} ,x_2=\dfrac{my_2+ny_1}{m+n}$

Discussion

35.	Find the HCF of 74 and 69
Answer» ONG>ANSWER: The answer is ''THERE IS NO HCF'' Step-by-step explanation: Factors of 74 = 2 and 37 (which are prime numbers ) Factors of 69 = 3 AND23 (which are prime numbers ) PLS mark it as BRAINLIEST . Do like and support....

35.

Find the HCF of 74 and 69

Answer» ONG>ANSWER:

The answer is ''THERE IS NO HCF''

Step-by-step explanation:

Factors of 74 = 2 and 37 (which are prime numbers )

Factors of 69 = 3 AND23 (which are prime numbers )

PLS mark it as BRAINLIEST . Do like and support....

Discussion

36.	Name the property used in : (283 X 5 ) X 651 = 283 X (5 X 651) (1 Point)
Answer» ONG>ANSWER: DISTRIBUTIVE PROPERTY

Discussion

37.	ପାର୍ଶ୍ଵ ରେ ଦିଆଯାଇଥିବା ଚିତ୍ର ମଧ୍ୟରେ କେତୋଟି ତ୍ରିଭୁଜ ହୋଇପାରିବ ?(a) 16 ଟି(b) 32 ଟି(C) 40 ଟି(d) 44 ଟି
Answer» ong>ANSWER: here their is no PICTURE then how we able to SAY the answer

37.

ପାର୍ଶ୍ଵ ରେ ଦିଆଯାଇଥିବା ଚିତ୍ର ମଧ୍ୟରେ କେତୋଟି ତ୍ରିଭୁଜ ହୋଇପାରିବ ?(a) 16 ଟି(b) 32 ଟି(C) 40 ଟି(d) 44 ଟି

Answer»

ong>ANSWER:

here their is no PICTURE then how we able to SAY the answer

Discussion

38.	(0.7) hole power 2 find the answer
Answer» ONG>Answer:(0.7)^2 = 0.7×0.7=0.49

Discussion

39.	Find the profuct = 8/11 × 22(Fractions)
Answer» ONG>ANSWER: SORRY don't know Step-by-step explanation: plz MARK as brainliest

39.

Find the profuct = 8/11 × 22(Fractions)

Answer» ONG>ANSWER:

SORRY don't know

Step-by-step explanation:

plz MARK as brainliest

Discussion

40.	The following observations have been arranged in ascending order, If the mean of the data is 13, Find the value of x: 3,6,7,10,x,x+4,19,20,25,28
Answer» ong>Answer: MEAN $= \frac{sum \: of \: all \: observatins}{number \: of \: observations} \\ 13 = \frac{3 + 6 + 7 + 10 + x + x + 4 + 19 + 20 + 25 + 28}{10 } \\ 13 = \frac{122 + 2x}{10} \\ 13 \times 10 = 122 + 2x \\ 130 = 122 + 2x \\ 130 - 122 = 2x \\ 8 = 2x \\ \frac{8}{2} = x \\ x = 4(answer)$ hope it's HELPFUL PLEASE FOLLOW MARK as brainliest

40.

The following observations have been arranged in ascending order, If the mean of the data is 13, Find the value of x: 3,6,7,10,x,x+4,19,20,25,28

Answer»

ong>Answer:

MEAN

$= \frac{sum \: of \: all \: observatins}{number \: of \: observations} \\ 13 = \frac{3 + 6 + 7 + 10 + x + x + 4 + 19 + 20 + 25 + 28}{10 } \\ 13 = \frac{122 + 2x}{10} \\ 13 \times 10 = 122 + 2x \\ 130 = 122 + 2x \\ 130 - 122 = 2x \\ 8 = 2x \\ \frac{8}{2} = x \\ x = 4(answer)$

hope it's HELPFUL PLEASE FOLLOW MARK as brainliest

Discussion

41.	24acube+81bcube ka factors ‌
Answer» ONG>Answer: FACTOR of 81:- 1,3,9,27,81 factor of 21:- 1,3,7,21

41.

24acube+81bcube ka factors ‌

Answer» ONG>Answer:

FACTOR of 81:- 1,3,9,27,81

factor of 21:- 1,3,7,21

Discussion

42.	Co-ordinate Geometry JEEMain(ref. attachment)
Answer» ong>Answer: 21. Step-by-step explanation: Let, A ----> (2,-3) B ----> (-5,6) Point on Y AXIS , P ----> (0, y ) M1 : M2 : : l : m. Assume, m = 1. So, M1 : M2 : : l : 1. P (0, y ) -----> { [(l )(-5) + (1 )(2 )] / [ l + 1 ] } , { [(l )(6 ) + (1 )(-3 )] / [ l + 1 ] } ------> { [-5L + 2] / [ l + 1 ] } , { [6l - 3] / [ l + 1 ] } Comparing both sides, 0 = [-5l + 2] / [ l + 1 ] -5l + 2 = 0 -5l = -2 l = -2/-5 = 2/5. So, M1 / M2 = l / 1 = (⅖)/1 = 5/2 So, M1 : M2 : : 5 : 2 i.e., l = 5 m = 2. To find, l² - m² = 5² - 2² = 25 - 4 = 21. P.S. : I'm in class 10. So, I'm not sure if it is correct. We're currently studying Coordinate geometry at school. So, I tried to solve it with that knowledge only. Hope this helps !!!! You're PREPARING for JEE ????!!!! OMG... Anyway, best of luck...! You can crack it !!!!

42.

Co-ordinate Geometry JEEMain(ref. attachment)

Answer»

ong>Answer:

21.

Step-by-step explanation:

Let,

A ----> (2,-3)

B ----> (-5,6)

Point on Y AXIS , P ----> (0, y )

M1 : M2 : : l : m.

Assume, m = 1.

So,

M1 : M2 : : l : 1.

P (0, y ) -----> { [(l )(-5) + (1 )(2 )] / [ l + 1 ] } , { [(l )(6 ) + (1 )(-3 )] / [ l + 1 ] }

------> { [-5L + 2] / [ l + 1 ] } , { [6l - 3] / [ l + 1 ] }

Comparing both sides,

0 = [-5l + 2] / [ l + 1 ]

-5l + 2 = 0

-5l = -2

l = -2/-5 = 2/5.

So,

M1 / M2 = l / 1 = (⅖)/1 = 5/2

So,

M1 : M2 : : 5 : 2

i.e.,

l = 5

m = 2.

To find,

l² - m² = 5² - 2² = 25 - 4 = 21.

P.S. :

I'm in class 10. So, I'm not sure if it is correct. We're currently studying Coordinate geometry at school. So, I tried to solve it with that knowledge only. Hope this helps !!!!

You're PREPARING for JEE ????!!!! OMG... Anyway, best of luck...! You can crack it !!!!

Discussion

43.	How is adding 0.267 to 50.9 different from adding 0.26 to 50.9
Answer» ONG>ANSWER: there is a very LESS DIFFERENCE

Discussion

44.	Find the nth term of 1,5\6,2\3,1\2...
Answer» ong>ANSWER: even 3RD century FOX news is a very good team and

44.

Find the nth term of 1,5\6,2\3,1\2...

Answer»

ong>ANSWER:

even 3RD century FOX news is a very good team and

Discussion

45.	if a form and start from a point and covers 16 miles in 4 hours in the same direction how many miles will one man cover in one hour
Answer» ONG>ANSWER: SORRY ...........................

Discussion

46.	If (y-3) is a factor of y³-2y²-9y+18 then find the other two factors
Answer» ER: Step-by-step explanation: t is GIVEN that (y-3) is a factor of the three-degree polynomial equation y³-2y²-9y+18 =0 Now, we will factorize the above expression USING a factor as (y-3). HENCE, y³-2y²-9y+18 =0 ⇒ y³-3y²+y²-3y-6y+18 =0 ⇒y²(y-3)+y(y-3)-6(y-3) =0 ⇒(y-3)(y²+y-6)= 0 ⇒(y-3)(y²+3y-2y-6) =0 ⇒(y-3)(y+3)(y-2)=0 Hence, from the above expression, it is clear that the other two factor of equatio (1) are (y+3) and (y-2). (Answer)

46.

If (y-3) is a factor of y³-2y²-9y+18 then find the other two factors

Answer» ER:

Step-by-step explanation:

t is GIVEN that (y-3) is a factor of the three-degree polynomial equation y³-2y²-9y+18 =0

Now, we will factorize the above expression USING a factor as (y-3). HENCE,

y³-2y²-9y+18 =0

⇒ y³-3y²+y²-3y-6y+18 =0

⇒y²(y-3)+y(y-3)-6(y-3) =0

⇒(y-3)(y²+y-6)= 0

⇒(y-3)(y²+3y-2y-6) =0

⇒(y-3)(y+3)(y-2)=0

Hence, from the above expression, it is clear that the other two factor of equatio (1) are (y+3) and (y-2). (Answer)

Discussion

47.	Subtract the sum of -3/10 and 5/8 from the sum of 4/15 and 2/-5
Answer» ONG>Step-by-step explanation: 0.45833333333..............

Discussion

48.	X³-4x²-25x+70 by x–6 (Divide)
Answer» ONG>ANSWER: answer for the GIVEN PROBLEM is given

48.

X³-4x²-25x+70 by x–6 (Divide)

Answer» ONG>ANSWER:

answer for the GIVEN PROBLEM is given

Discussion

49.	Of x = 13 then fiund the value odI] 3x+54------------3x - 5y
Answer» ONG>Step-by-step explanation: 1) 3*(13)+54 so it's value is 93 DEADSOUL

49.

Of x = 13 then fiund the value odI] 3x+54------------3x - 5y

Answer» ONG>Step-by-step explanation:

1) 3*(13)+54 so it's value is 93

DEADSOUL

Discussion

50.	Pawar pranav 12 if u can see this so here is your answer
Answer» ong>ANSWER: than what is your QUESTION? Step-by-step explanation: It may be HELPFUL for you. and me.

50.

Pawar pranav 12 if u can see this so here is your answer

Answer»

ong>ANSWER:

than what is your QUESTION?

Step-by-step explanation:

It may be HELPFUL for you. and me.

Discussion

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