Mathematics
Xin's user avatar
Xin's user avatar
Xin's user avatar
Xin
  • Member for 4 years, 4 months
  • Last seen more than 1 year ago
  • Xiamen, 福建省中国
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Physical science computing nerd

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All Questions Answers
Score Newest
question
3
How to evaluate $\int_{0}^{\infty} \frac{\arctan x}{x^2+x+1}dx$
Sep 1, 2019
question
1
The sum function of the power series $\sum_{n=0}^{\infty}\frac{(2n)!!}{(2n+1)!!}x^{2n+1}$
Aug 21, 2019
question
1
sum of $\lim \limits_{n \to \infty}\big(\frac{1}{2n}+\frac{1}{2n+1}+\cdots+\frac{1}{3n-2}+\frac{1}{3n-1}\big)$
Aug 27, 2019
question
1
Proof calculus inequality $\int_0^{\frac{\pi}{2}}\sqrt{1+a\sin^2x} \geq \frac{\pi}{4}(1+\sqrt{1+a})$
Aug 31, 2019
question
0
How to solve or get Get approximate solution of this type of differential equation $A\frac{d^2y}{dx^2}+B\frac{dy}{dx}+Cy+Dy^3=f(x)$?
Apr 13, 2021

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