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May
27
reviewed Reject What is the probability that 5 randomly chosen cards in a deck add up to 40 or greater?
May
10
reviewed No Action Needed Proof of Cauchy Riemann Equations in Polar Coordinates
Apr
25
reviewed Reopen Difficult Complex Number Proof. Given $|w| =1$ or $|v|=1$
Apr
24
reviewed Reopen Simplifying $\frac{\log(x)}{x}=y$.
Apr
24
reviewed Approve Why can't we differentiate one variable with respect to another variable?
Apr
23
reviewed Close Expected value of key presses
Apr
23
reviewed Leave Open Examples of modules such that $M\oplus N_1\simeq M\oplus N_2$, but $N_1\not\simeq N_2$?
Apr
23
reviewed Edit Can someone help me with this limits problem
Apr
23
reviewed Leave Open Finding the vector perpendicular to the plane
Apr
23
reviewed Looks OK Interpretation of a combinatorial identity
Apr
23
reviewed Leave Closed How can I prove this combinatorial identity?
Apr
16
reviewed Reopen Circle sandwiched between two squares problem
Apr
16
reviewed Reopen Edited-How can I solve polynomial recurrences like $f(n+1)=\frac{2f(n)}{f(n)+1}$
Apr
16
reviewed No Action Needed Limits of coefficeints in a system of O.D.E.s.
Apr
16
reviewed Reviewed How to get the projection matrix from coordinate/transformation?
Apr
15
reviewed Approve Stirling Formula
Apr
15
reviewed Reviewed How to determine number of roots of $a^k + b^k \equiv c^k \pmod{d}$?
Apr
15
reviewed Close How to prove that $\text{Aut}(\mathbb{Z}/p \times \cdots \times \mathbb{Z}/p )\simeq GL_n(\mathbb{Z}/p)$
Apr
15
reviewed Leave Open Number Theory - Order of $p^2$
Apr
15
reviewed Close How show $ S \models \forall x ( \alpha \Leftrightarrow \beta)$?