Mathematics
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Acccumulation
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answer
139
In a village, $90\%$ of people drink Tea, $80\%$ Coffee, $70\%$ Whiskey, $60\%$ Gin. Nobody drinks all four. What percentage of people drinks alcohol?
Aug 7, 2018
answer
110
Non-associative operations
Aug 23, 2018
answer
40
Without using a calculator and logarithm, which of $100^{101} , 101^{100}$ is greater?
Nov 27, 2017
answer
30
Covering the Euclidean plane with constructible lines and circles
Sep 10, 2018
answer
28
Let $A=(a_{ij})$ be an $n\times n$ matrix. Suppose that $A^2$ is diagonal. Must $A$ be diagonal?
Apr 12, 2018
answer
28
Can you completely permute the elements of a matrix by applying permutation matrices?
May 10, 2018
answer
17
What does it mean for a polynomial to be the 'best' approximation of a function around a point?
Sep 27, 2020
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14
Without using a calculator, is $\sqrt[8]{8!}$ or $\sqrt[9]{9!}$ greater?
May 1, 2018
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12
A thorough explanation on why division by zero is undefined?
Apr 23, 2019
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10
Do you lose solutions when differentiating to solve an integral equation?
Sep 15, 2021
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69
Why does the speed of a ping pong ball increase when the space in which it can bounce decreases?
65
Professor creates assignment making students advocate for a bill being presented to Congress. Is this legal?
63
In the Christmas Pageant scene, what did Buzz do to Kevin?

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