Mathematics
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The Demonix _ Hermit
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All Questions Answers
Score Newest
question
10
Maximum value of $x$ such that $3^x-2^n$ is a prime.
Sep 30, 2019
answer
8
If $a+b = 2020$ and $ab$ is a multiple of $2020$ , find all pairs of $(a,b)$
Dec 6, 2019
answer
8
How to prove $x^4+2x^2y^2+y^4\geq2xy^3$
Dec 19, 2019
answer
7
Find maximum of $C=2(x+y+z)-xy-yz-xz$
Dec 22, 2019
question
7
For what values of n is $2^{2n} -1$ divisible by $4n+1$
Sep 27, 2019
question
6
Solve $x^2+3y = u^2$ and $y^2+3x=v^2$ in positive integers.
Jul 22, 2020
answer
6
Find all n such that $3^{(2n-1)}-2^{(n-1)}$ is perfect square
Dec 18, 2019
answer
6
Solve the equation exponential radical
Nov 27, 2019
answer
5
Prove that $3^{2015}-2^{2015}>2016^2$
Nov 21, 2019
answer
5
$\frac{x}{y}-\frac{y}{x}=\frac56$ and $x^2-y^2=5$
Dec 22, 2019
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What object am I? -- white, dry, not green
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The Weird cipher password?

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