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May
5
accepted Rudin or Apostol
May
2
accepted What are k-cycles?
Apr
28
accepted Proving continuity of $f$
Apr
5
accepted Group theory text
Apr
2
accepted How to show $\int_{0}^{\frac{\pi}{2}} \cos^m x\sin^m x dx=2^{-m}\int_{0}^{\frac{\pi}{2}} \cos^m x dx$?
Feb
29
accepted How to prove that $\frac{\cos\alpha}{\cos\beta}=a/b$
Jan
29
accepted Inequality regarding exponents(similar to Bernoulli's inequality)
Jan
21
accepted Limit of a function satisfying an inequality
Dec
29
accepted Possibility of constructing a desirable subset
Dec
27
accepted Graph theory resource for mathematical Olympiads
Dec
24
accepted Proving that an additive function $f$ is continuous if it is continuous at a single point
Nov
13
accepted Finding positive real numbers $x$,$y$ and $z$ IMO Shortlist 1995 A4
Nov
11
accepted Finding pairs of integers such that $x^2+3y$ and $y^2+3x$ are both perfect squares
Nov
10
accepted Proof of Spivak's statement that if $0<|x-a|<\delta$, then $|g(x)-m|< \min(\frac{|m|}{2},\frac{\epsilon|m|^2}{2})$
Nov
8
accepted Difficulty level of Courant's book
Nov
7
accepted Counting ordered triples of non-negative integers not greater than 100
Nov
3
accepted How do I prove equality of x and y?
Nov
3
accepted Question involving indices
Sep
29
accepted $a,b,c>0 \text{ s.t. }a+b+c=1 \implies \sqrt{ab+c}+\sqrt{bc+a}+\sqrt{ca+b} \ge 1+ \sqrt{ab}+\sqrt{bc}+\sqrt{ca}$
Sep
29
accepted How can I prove it to be a well-defined binary operation?