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Asked by Adarsh Udayan

Feb 11, 2015

∫(√tanx)dx

infinity

Answer (4)

Asked by Bhoothnath

Jun 24, 2014

Value of sin 2π?

since sin(2npi) = 0
Thus n=1=>

Answer (20)

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

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
...

Answer (1)

Asked by Kishore Kumar

Feb 2, 2014

What is one one and onto function? Explain with example

Answer.

Sol: for x1  x2 or f(x1)

Answer (2)

Asked by Adarsh Udayan

Jan 20, 2015

0π/2 log(sinx)dx

Answer.


Let I = 0 π

Answer (2)

Asked by Rajesh

Oct 5, 2013

State and prove de-moivre's theorem,

De-moivre’s theorem:
(cosθ + i sinθ)n = (cos nθ + i sin nθ) for all n ϵ N
Proof:
We have to prove this theorem u...

Answer (1)

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...

Answer (2)

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 66 points in the sample space ?

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Answer (2)

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

This answer has an image. Please click on the question to read more.

Answer (2)

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 ?

Answer.
If a line makes angles α,β,ɣ with the axes we have α = β = ɣ .
cos α = cos β = cos ɣ or l = m = n .
l2 + m2 + n2 = 1
l2 + l2...

Answer (2)

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