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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