Mathematics
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Zau
  • Member for 7 years, 10 months
  • Last seen more than a month ago
  • Shanghai, China
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All Questions Answers
Score Newest
answer
17
Proving that the sum of any two sides of the triangle is greater than the third side
Jul 31, 2016
answer
16
Evaluating this integral $ \small\int \frac {x^2 dx} {(x\sin x+\cos x)^2} $
Aug 21, 2016
answer
11
To find last two digits of $2^{100}$
Jul 31, 2016
answer
9
Solve $2^x+2^{-x} = 2$
Jul 11, 2016
answer
8
If ($b^n-1$)/($b-1$) is prime, prove $n$ is prime relatively prime to $b-1$
Aug 14, 2016
answer
6
Prove this integral $\int_0^\infty \frac{dx}{\sqrt{x^4+a^4}+\sqrt{x^4+b^4}}=\frac{\Gamma(1/4)^2 }{6 \sqrt{\pi}} \frac{a^3-b^3}{a^4-b^4}$
Aug 21, 2016
answer
6
How to find the reminder when $982^{40167}$ is divided by 15?
Jun 26, 2016
answer
6
Consider the Matrix $A$, Find $A^{100}$
May 29, 2016
answer
5
The convergence of $\sqrt{x^2+\frac{1}{n}}$
Jul 14, 2016
question
5
Intuition Behind Whitney Covering Lemma
Nov 3, 2018
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25
Why are the electric force and magnetic force classified as electromagnetism?

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