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Mathematics
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NotAMathematician
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20
Two trains move towards each other, a bird moves between them. How many trips can the bird make? [duplicate]
Sep 19, 2019
15
Proof that $\lim\limits_{n\to \infty}\frac{n!}{n^n}$ is $0$
Nov 15, 2017
8
Is it possible that $2^{2A}+2^{2B}$ is a square number?
Aug 15, 2020
8
Is this a field?
Apr 10, 2018
6
If $f(0)=f'(0)=1$ and $f''(x)>0$, then $f(2)>2$
Oct 29, 2017
5
Justify this is locus is indeed a parabola
Sep 29, 2017
5
Prove that if x,y,z are positive integers such that $x^3+y^3+z^3=3(x+y+z+xyz)$ then they must be consecutive numbers
Oct 8, 2020
4
A Transformation of a cross-shaped grid filled with 1s (Proof of impossibility?)
Oct 13, 2020
4
Arrange numbers from 1 to 9 such that between every pair of consecutive numbers there must be an odd amount of terms
Sep 21, 2020
4
Prove that the height of this triangle equals the sum of the radii of the cirles
Nov 27, 2017
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Book recommendations for Math for Biochemistry Course