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Asked by Adarsh Udayan

Feb 11, 2015

âˆ«(âˆštanx)dx

infinity

Asked by Bhoothnath

Jun 24, 2014

Value of sin 2Ï€?

since sin(2npi) = 0

Thus n=1=>

Thus n=1=>

Asked by Murtaza Nimachwala

Dec 10, 2014

Find the angle between the lines whose direction cosines are given by the equations

3l + m + 5n = 0 and 6mn - 2nl + 5lm = 0

3l + m + 5n = 0 and 6mn - 2nl + 5lm = 0

Sol:

Given lines are 3l + m + 5n = 0

m = - (3l + 5n) -----------(1)

and 6mn - 2nl + 5lm = 0 ----------(2)

Substitute m in equation (2) we obtain

...

Given lines are 3l + m + 5n = 0

m = - (3l + 5n) -----------(1)

and 6mn - 2nl + 5lm = 0 ----------(2)

Substitute m in equation (2) we obtain

...

Asked by Kishore Kumar

Feb 2, 2014

What is one one and onto function? Explain with example

Answer.

Sol: for x_{1 }â‰ x_{2} or f(x_{1})

Sol: for x

Asked by Adarsh Udayan

Jan 20, 2015

Answer.

Let I = $\underset{\text{0}}{\overset{\frac{\xcf\u20ac}{}}{\xe2\u02c6\xab}}$

Let I = $\underset{\text{0}}{\overset{\frac{\xcf\u20ac}{}}{\xe2\u02c6\xab}}$

Asked by Rajesh

Oct 5, 2013

State and prove de-moivre's theorem,

(cosÎ¸ + i sinÎ¸)

We have to prove this theorem u...

Asked by Anubhav Singh

Feb 24, 2015

There is the probability that a mathematics teacher will give an unannounced test during any class meeting is 1/ 5. If a student is absent twice, what is the probability that he will miss at least one test?

Answer.

GIven that probability that a mathematics teacher will give an unannounced test during any class meeting is 1 / 5.

the probability of not missing the test = 1 - 1/5 = 4/ 5

T...

GIven that probability that a mathematics teacher will give an unannounced test during any class meeting is 1 / 5.

the probability of not missing the test = 1 - 1/5 = 4/ 5

T...

Asked by Anubhav Singh

Nov 4, 2014

find the probability distribution of number of doublets in three throws of a pair of dice ?

P.S:please tell why there won't be 6^{6 }points in the sample space ?

P.S:please tell why there won't be 6

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Asked by Sukirtha

Nov 20, 2014

Vertices of a triangle are given by i^+3j^+2k^ , 2i^-j^+k^ and -i^+2j^+3k^ then area of triangle is

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Asked by Anubhav Singh

Feb 9, 2015

what are the direction ratios of a line equally inclined to the axes? How many such lines are there ?

please explain all the necessary steps in detail along with the formulas used and the diagram ?

please explain all the necessary steps in detail along with the formulas used and the diagram ?

Answer.

If a line makes angles Î±,Î²,É£ with the axes we have Î± = Î² = É£ .

cos Î± = cos Î² = cos É£ or l = m = n .

l2 + m2 + n2 = 1

l2 + l2...

cos Î± = cos Î² = cos É£ or l = m = n .

l2 + m2 + n2 = 1

l2 + l2...