Mathematics
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MathematicianByMistake

What am I doing here?!

I make a lot of silly mistakes and hardly ever learn from them. Generally a slow learner. In a love and hate relationship with math since my school years.

"The root of Mathematics is not physics, but metaphysics"

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  • Member for 4 years, 1 month
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Top posts (223) All Questions Answers | Votes Newest

11 Prove that $\sin n\theta=n\sin \theta-\frac{n(n^2-1)}{3!}\sin^3\theta+\frac{n(n^2-1)(n^2-3^2)}{5!}\sin^5\theta+\cdots$ Apr 11 '16
10 Let $a_n=\cos(a_{n-1}), L=[a_1,a_2,…,a_n,…].$ Is there an $a_0$ such that $L$ is dense in$[-1,1]?$ Mar 17 '16
9 Are linear combinations of powers of a matrix unique? May 16 '16
7 Sum of elements of a finite field May 5 '15
7 Find a prime that divides $14^7+14^2+1$ Oct 27 '17
7 if $x^y=y^x$ show that $x+y>2e$ May 4 '16
7 Solving the “Spider and Fly problem” using calculus May 9 '16
7 Book recommendation about mathematics Nov 5 '17
6 How important are inequalities? Apr 17 '16
5 How to mentally flip a coin? Jan 23 '17
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