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 Sep 2 awarded Critic May 11 awarded Popular Question Sep 24 awarded Autobiographer Jul 2 awarded Curious Dec 5 awarded Yearling Oct 12 asked What does $e^z,|z|=1$ look like？ Sep 27 accepted How to evaluate $\int_{0}^{\pi} \log(2+\cos x)dx$? Sep 26 accepted How to prove $\lim_{n\to \infty} \prod_{i=0}^{n-1}$ $(2+\cos \frac{i \pi}{n})^{\frac{\pi}{n}}$=$\sqrt{3}$ by the sum form of a integration? Sep 26 comment How to evaluate $\int_{0}^{\pi} \log(2+\cos x)dx$? As it is a trigonometry form. Is it a natural way to think the Euler formula? Sep 26 comment How to evaluate $\int_{0}^{\pi} \log(2+\cos x)dx$? Great ! How does the ideal of using $I(a)$ or $ln（\frac{a+a^{-1}}{2}+cosx)$ come out? Sep 26 revised How to evaluate $\int_{0}^{\pi} \log(2+\cos x)dx$? added 147 characters in body Sep 26 revised How to evaluate $\int_{0}^{\pi} \log(2+\cos x)dx$? added 3 characters in body; edited title Sep 26 asked How to evaluate $\int_{0}^{\pi} \log(2+\cos x)dx$? Sep 26 accepted How to compute the number of Sylow p-subgroups of $GL_{n}(F_{p})$ ？ Sep 26 revised How to prove $\lim_{n\to \infty} \prod_{i=0}^{n-1}$ $(2+\cos \frac{i \pi}{n})^{\frac{\pi}{n}}$=$\sqrt{3}$ by the sum form of a integration? added 87 characters in body Sep 25 comment How to prove $\lim_{n\to \infty} \prod_{i=0}^{n-1}$ $(2+\cos \frac{i \pi}{n})^{\frac{\pi}{n}}$=$\sqrt{3}$ by the sum form of a integration? @experimentX The $pi$ is redundant. Sep 25 revised How to prove $\lim_{n\to \infty} \prod_{i=0}^{n-1}$ $(2+\cos \frac{i \pi}{n})^{\frac{\pi}{n}}$=$\sqrt{3}$ by the sum form of a integration? added 4 characters in body Sep 25 comment How to prove $\lim_{n\to \infty} \prod_{i=0}^{n-1}$ $(2+\cos \frac{i \pi}{n})^{\frac{\pi}{n}}$=$\sqrt{3}$ by the sum form of a integration? @experimentX How do you copmute the integration? Sep 25 revised How to prove $\lim_{n\to \infty} \prod_{i=0}^{n-1}$ $(2+\cos \frac{i \pi}{n})^{\frac{\pi}{n}}$=$\sqrt{3}$ by the sum form of a integration? edited title Sep 25 asked How to prove $\lim_{n\to \infty} \prod_{i=0}^{n-1}$ $(2+\cos \frac{i \pi}{n})^{\frac{\pi}{n}}$=$\sqrt{3}$ by the sum form of a integration?