Mathematics
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liyushu
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All Questions Answers
Score Newest
question
4
Triple integral in spherical coordinate, where am I wrong
Nov 13, 2022
question
2
$\int _{2}^{+\infty }\ \dfrac{\sin x}{x\ln x }dx$ is convergent but not absolutely convergent
Apr 4, 2022
question
2
$\iiint\limits_{D}\frac{dxdydz}{\sqrt{x^2+y^2+(z-\frac{1}{2})^2} }$ D is given by $x^2+y^2+z^2 \leq 1$
Nov 11, 2022
question
1
$\forall x > 0$, there exists a unique $\xi_x$ s.t.$ \int_{0}^{x}e^{t^2}dt=xe^{\xi_x^2}$; solve $\lim_{x \to \infty} \frac{\xi_x}{x} $
Mar 22, 2022
question
1
Find area of $x^2+axy+y^2=1$, $|a|\leq1$
Mar 30, 2022
question
1
Show by strict application of the definition that the closure of $|z - z_0| < \delta$ is $|z - z_0| \leq \delta$.}
Apr 20
answer
1
$\prod_{n=3 }^{+\infty} \cos\frac{\pi}{n}$is convergent or not?
Apr 27, 2022
answer
1
Triple integral in spherical coordinate, where am I wrong
Nov 13, 2022
question
1
angles at the two points of intersection are opposite to each other.
Apr 24
question
1
Solution to the Partial Differential Equation $ u_t - xtu_x = 0 $
Sep 8

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