Mathematics
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A plate of momos
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  1. Summary of a chapter of Tristan Needham as an answer

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The most important quote in mathematics that I think every one aspiring to do anything in it should know:

"Young man, in mathematics you don't understand things. You just get used to them."

Previously buraian

Wrinkling my brain

Do you feel you got wrongly downvoted on MSE? Angry at the people who downvoted you?

Then I suggest this song to you

I invite you to my chatroom

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Geometric proof of $\cos A + \cos B + \cos C + \cos (A+B+C) = 4 \cos \frac{A+B}{2} \cos \frac{B+C}{2} \cos \frac{A+C}{2}$
Aug 18, 2021
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Matrix with given condition $a+b+c+d=0$
Oct 1, 2020
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Quadratic formula in differential equations
Dec 3, 2020
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Why and How do certain manipulations in indefinite integrals "just work"?
Aug 10, 2021
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Finding result of composing operations many times
Aug 25, 2020
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Should I tick a multiple choice question at random or not in an exam with different weight for correct and wrong answer?
Jul 27, 2021
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Prove this formula $\frac{1-r\cos(x)}{1-2r\cos(x)+r^2}= 1+\sum_{n=1}^{+\infty}r^{n}\cos\left(nx\right)$
Jan 27, 2021
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Order and degree of a differential equation
Feb 21, 2021
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Circle passing through two points and tangent to a line
May 10, 2021
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How to reconcile two approaches to the Gaussian curvature
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