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Mar
13
revised Radius of Curvature
added 3 characters in body
Mar
10
revised Evaluating $\int_{0}^{\infty}\frac{1-e^{-t}}{t}\sin{t}\operatorname d\!t$
added 32 characters in body; edited title
Mar
9
reviewed Reject Two non isomorphic algebraic varieties
Mar
9
reviewed Approve Mean Value related problem.
Mar
9
reviewed Approve $x^2-1$ with prime factors < 100
Mar
9
reviewed Approve How to find out the real part of this.
Mar
9
reviewed Approve What is the importance of the spectral theorem?
Mar
9
answered Determining total number of tickets sold
Mar
8
reviewed Approve Project $x$ orthogonally onto $v$: is the projection $p$ the average of $x$?
Mar
4
revised Evaluating $\int \cos^4(x)\operatorname d\!x$
added 46 characters in body; edited title
Mar
2
revised Simplfying $\sqrt{31-8\sqrt{15}}+\sqrt{31+8\sqrt{15}}$
added 71 characters in body; edited title
Mar
2
reviewed Approve Solving simultaneous equations in terms of variables
Mar
2
reviewed Edit Evaluating $\lim_{n\to\infty}\left(\frac{1-i}{4}\right)^n$
Mar
2
revised Evaluating $\lim_{n\to\infty}\left(\frac{1-i}{4}\right)^n$
Latex edited
Feb
28
revised Evaluating $\int \frac{\sqrt{1-x^2}}{x^2} \operatorname d \! x$
added 20 characters in body; edited title
Feb
27
reviewed Approve Topics on Number theory for undergraduate to do a project
Feb
26
revised $\lim_{n\rightarrow \infty} \frac {(n!)^{\frac {1}{n}}}{n}$ and $\lim_{n\rightarrow \infty} \frac {1}{n}\ln {2n \choose n}$
edited title
Feb
26
revised Evaluate $f(x)= {\int_{-\infty}^0\ }\frac{x^2}{e^{x^2}}\operatorname d\!x$
added 11 characters in body; edited title
Feb
26
reviewed Edit Proof of transformations to find an approximate value
Feb
25
awarded  Popular Question