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user140374
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question
14
How do I prove that $3<\pi<4$?
Apr 5, 2014
question
6
How do I prove that $f'(z)=0$ implies $f$ is constant?
Apr 13, 2014
question
4
what is the argument of 0?
Apr 4, 2014
question
4
How do I prove this set is connected?
Apr 19, 2014
question
3
What is the definition for holomorphic functions on the Riemann sphere?
Apr 6, 2014
question
3
How do i prove this set has at most 2 elements?
Apr 11, 2014
question
3
How do I effectively solve this kinds of problems?
Apr 19, 2014
question
3
How do I prove that $\lim_{n\to\infty} n\sqrt{2-2\cos(\frac{2\pi}{n})}=2\pi$
Apr 19, 2014
question
2
How do i prove that $\gcd(a_1,\ldots,a_n)\operatorname{lcm}(a_1,\ldots,a_n)=a_1\cdots a_n$?
Apr 13, 2014
question
2
Why is the rank of a finitely generated finite abelian group zero?
Apr 18, 2014