Reputation
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386/400 score
96/80 answers
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15 145 299
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~1.4m people reached

Oct
26
reviewed Edit Solving this system of equations in $\mathbb{Z}/19\mathbb{Z}$
Sep
11
reviewed Approve How to show $\frac{d}{dt}(\det(I+At)=\text{Tr}(A)$?
Sep
10
reviewed Approve What did Paul Halmos have in mind in this quotation?
Sep
8
reviewed Approve finding limits for trinometric expression
Sep
8
reviewed Approve What is the difference between $-1^2$ and $(-1)^2$?
Aug
29
reviewed Edit $F$ is subfield of complex field $\mathbb{C}$. Show that $F$ is field with characteristic $0$
Aug
15
reviewed Reject Value of $\frac{\sqrt{10+\sqrt{1}}+\sqrt{10+\sqrt{2}}+\cdots+\sqrt{10+\sqrt{99}} }{\sqrt{10-\sqrt{1}}+\sqrt{10-\sqrt{2}}+\cdots+\sqrt{10-\sqrt{99}}}$
Jul
27
reviewed Approve Square root equation
Jul
27
reviewed Edit Multiplication of quaternion vectors
Jul
24
reviewed Edit Proof of $f^{-1}(B_{1}\setminus B_{2}) = f^{-1}(B_{1})\setminus f^{-1}(B_{2})$
Jul
22
reviewed Reject 3 men and a cold night
Jul
20
reviewed Approve Continuity but not differentiability of $f(x,y)= \frac{xy^2}{x^2 + y^2}$ at $(0,0)$
Jul
14
reviewed Edit Is there a way to visualize, like a picture in mind, the $n$-th derivative?
Jul
11
reviewed Approve Odd sequence in alternating series test proof
Jul
11
reviewed Close continuous and monotonic function
Jul
11
reviewed Close Average Attendance
Jul
11
reviewed Close Can we simulate a biased coin with fair die?
Jul
11
reviewed Close Question on proving quadratic inequality
Jul
11
reviewed Close One Square and one straight line(pipe)
Jul
11
reviewed Close Probability Question - Pls help