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Answer:D)1Explanation:Tan 15 tan 20 tan 75 tan 70tan(90-x)= cot xtan 15=cot 75tan20=cot 70tan75cot75=1tan70cot70=1now Tan 15 tan 20 tan 75 tan 70=1*1 =1

no. of even outcome in a die are (2,4,6) that is 3 out of 6 results.

so the probability is 3)6 or 1/2.

I am assuming the dice is 6 sided.Hence the sample space has 6 possible outcomes-S={1,2,3,4,5,6}.Let all outcomes are equally likely(fair dice).Hence Probability of any one outcome occurring= 1/6.The event that we get that an even number on tossing the die can occur in 3 possible ways. Let E denote this event.E= {2,4,6}Now P(E)= 3*1/6= 1/2. Here we can also directly use discrete uniform law since the sample space is finite, discrete and all outcomes are equally likely(uniform). This means that we can find the probability of an event by just counting.P(E) = k/n=3/6.(k is no: of elements corresponding to the event and n is no: of elements in the sample space).

Its (5,5), (5,6) only two possiblity two dice are thrown that is 6^2=36 reqd prob =2/36

ha

99220 correct answer

99220 is right answer

99220 is the good answer

2|220, 272, 420-------------------------2| 110, 186, 210--------------------------3| 55, 93, 105------------------------5|. 55, 31, 35------------------------ 11, 31,7LCM= 2×2×3×5×11×31×7 = 99220

99220 is the correct answer

The L.C.M of 220 , 372 and 420 is 999220 .

thank you I am giving one more question

x=1 is the rootso put value of x in the equatiin we getx²+kx+3=01²+k(1)+3=01+k+3=04+k=0k=-4put the value of k in the equationnow the equation becomesx²-4x+3=0x²-3x-1x+3=0x(x-3)-1(x-3)=0(x-3)(x-1)=0x-3=0 or x-1=0x=3 or x=1therefore the other root is x=3

X = 1

P(X) = X²+KX-3

Putting X = 1

P(1) = (1)² + K × 1 +3

=> 1 + K + 3 = 0

=> K = -4

P(X) = X²-4X+3

=> X²-3X-X+3

=> X(X-3) -1(X-3)

=> (X-3) (X-1)

=> X-3 = 0. OR X-1 = 0

=> X = 3. OR X = 1

Hence,

the Value of K is -4 and 3 , 1 are the two zeros of the polynomial X²-4X+3

if x = 1 is a root then ,(1)^2+k(1)+3=0or , 1+k+3=0or , k=-4

Raju vaish answer is verified

sabhi ne answer diya hai .ok

xy(x²+y²)(x⁴-x²y²+y⁴)is the factorised form of the given equation and the best answer.

Factors 20= 2*2*5= 2^2*5thanks

Both the expansion have 101 terms each.However, every term with the odd power of x will be cancelled. There are 50 such terms.

=> Hence, number of terms =101-50 =51

Option (a) is correct.

thanks

thank you byhaa

(8^0+7^-1)*2^3=(1+1/7)*8=8/7*8=64/7

x= measure of the angle90 - x = complement of the angle

x + 1/6(90 - x) = 40x + 15 - 1/6 x = 405/6 x + 15 = 405/6 x = 25x = 30

a.)scale :1cm =10 childrenB.) i.) maximum no of children: class fifthminimum no of children : class tenthii.) ratio : 120/100=1.2

not clear thats page

hum to aasani SE Kar denge

1.92 is the correct answer of the given question

1.92 is correct answer

1.92 is correct answer of following question

For the stationary observer:Frequency of the sound produced by the whistle, ν = 400 HzSpeed of sound = 340 m/sVelocity of the wind,v= 10 m/sAs there is no relative motion between the source and the observer, the frequency of the sound heard by the observer will be the same as that produced by the source, i.e., 400 Hz.The wind is blowing toward the observer. Hence, the effective speed of the sound increases by 10 units, i.e.,Effective speed of the sound,ve= 340 + 10 = 350 m/sThe wavelength (λ) of the sound heard by the observer is given by the relation:λ=ve/v= 350/400 = 0.875 m

For the running observer:Velocity of the observer,vo= 10 m/sThe observer is moving toward the source. As a result of the relative motions of the source and the observer, there is a change in frequency (v‘).This is given by the relation:

Since the air is still, the effective speed of sound = 340 + 0 = 340 m/sThe source is at rest. Hence, the wavelength of the sound will not change, i.e.,λremains 0.875 m.Hence, the given two situations are not exactly identical.

a) 📐PQR 📐QRS📐RSP📐SPQ

B) 📐TSR📐SRQ📐RQP📐QPT📐PTS

An identity document is any document which may be used to prove a person's identity. If issued in a small, standard credit card size form, it is usually called an identity card, or passport card..

In the absence of a formal identity document, adriver's licensemay be accepted in many countries for identity verification. Some countries do not accept driver's licenses for identification, often because in those countries they do not expire as documents and can be old or easily forged. Most countries acceptpassportsas a form of identification. Some countries require all people to have an identity document available at any time. Many countries require all foreigners to have a passport or occasionally a national identity card from their home country available at any time if they do not have a residence permit in the country.

2x:3x:4xso4x^2+9x^2+16x^2= 72529x^2= 725x= 5सबसे बड़ी संख्या होगी4एक्स5=20

( x - 2) ( x + 1) = ( x - 1) ( x + 3)

x² + x - 2x - 2 = x² + 3x - x - 3

x² - x - 2 = x² + 2x - 3

3x - 3 + 2 = 0

3x - 1 = 0

As degree is 1 so, it is not w quadratic equation

6/11+(-2/7)+3/7+9/11+5/7Rearrange6/11+9/11+3/7-2/7+5/7=15/11+6/715(7)+6(11)/77=105+66/77=171/77

terms. frequency1. 12. 23. 54. 95. 76. 47. 2

a)area of rectangle =lbl´=2lb´=3bA´=l´b´A´=2lx3b=6lb=6A

b)l´=2lb´=2bA´=l´b´ =2lx2b =4lb =4A

When die is thrownSample space S = {1,2,3,4,5,6}Hence n(S) = 6

Even numbers from 1 to 6 are 2, 4, 6Event A even no. appear on upper faceThen, n(A) = 3

Prime numbers from 1 to 6 are 2, 3, 5Event B prime no. appear on upper faceThen, n(B) = 3

We have to find what percent of 8000 is 960

So,

8000*x/100 = 960

x = 960/80

x = 12%

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Area of square =(side)^21)when side is doubledhence it will become 2^2 times that is 4 times2)when side is tripledhence it will become 3^2 times that is 9 times

4/3 is the answer of the following

4/3 is the correct answer of the given question