Mathematics
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mcd
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All Questions Answers
Score Newest
answer
10
Integral that gives one or minus one
Feb 23
answer
10
Why $\cos\frac{\pi}{9}=-\frac{1}{2}(-1)^{\frac{8}{9}}(1+(-1)^{\frac{2}{9}})$?
May 4
answer
7
Repeated applications of a (rotation) matrix keep you in the same subspace?
Jun 9
answer
6
Evaluate $\int_{-\pi/2}^{\pi/2}\frac{\arctan(\sin^2(x))}{\sin^2(x)}dx$
Jun 10
answer
6
Find all polynomials $f$ such that $f(x+m)=f(x)+m$
Mar 9
answer
5
University of Cambridge: Mistake on the exam? Extending holomorphic functions on intersecting discs
May 29
answer
5
Why is my counting wrong? Counting the number of distinct permutations such that no two adjacent letters are the same
Oct 8, 2022
answer
5
Find the segment CR in the figure below?
Apr 22
answer
4
Is the following function even or odd?
Jan 28
answer
4
The most elementary proof of divisibility of sum of powers
Jan 30

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