Mathematics
Aakash Kumar's user avatar
Aakash Kumar's user avatar
Aakash Kumar's user avatar
Aakash Kumar
  • Member for 7 years, 6 months
  • Last seen more than 2 years ago
  • New Delhi, Delhi, India
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answer
17
Evaluating this integral $ \small\int \frac {x^2 dx} {(x\sin x+\cos x)^2} $
Aug 21, 2016
question
14
Determine all functions satisfying $f(x + f(x + y)) + f(xy) = x + f(x + y) +yf(x)$
Aug 4, 2016
question
8
Integral $\int \frac{dx}{\tan x + \cot x + \csc x + \sec x}$
Jul 26, 2016
answer
7
Integral $\int\!\sqrt{\cot x}\,dx $
Aug 18, 2016
answer
7
Find area of the triangle ABC, given the coordinates of vertices in plane
Oct 2, 2016
question
6
Evaluate $\int \frac{\sin^4 x}{\sin^4 x +\cos^4 x}{dx}$
Jul 20, 2016
question
6
Compute $\sum\limits_{k=0}^{100}\frac{1}{(100-k)!(100+k)!}$
Jul 10, 2016
question
6
Find $f(x)$ if $f(x+y)=f(x)+f(y) - 2xy + (e^x -1)(e^y -1) $
Aug 1, 2016
answer
5
Prove that $\cos^6 \beta - \sin^6 \beta=\frac {1}{16} (15 \cos 2\beta + \cos 6\beta)$.
Aug 27, 2016
answer
5
Trigonometry Olympiad problem: Evaluate $1\sin 2^{\circ} +2\sin 4^{\circ} + 3\sin 6^{\circ}+\cdots+ 90\sin180^{\circ}$
Jul 23, 2016
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What is an active centre of a catalyst?
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What is "gold number"?

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