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individ
  • Member for 9 years, 9 months
  • Last seen more than 1 year ago
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100
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All Questions Answers
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answer
-4
What needs math?
Feb 6, 2015
question
-14
What needs math?
Jan 26, 2015
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12
If $n = a^2 + b^2 + c^2$ for positive integers $a$, $b$,$c$, show that there exist positive integers $x$, $y$, $z$ such that $n^2 = x^2 + y^2 + z^2$.
10
Find a solution: $3(x^2+y^2+z^2)=10(xy+yz+zx)$
8
How to find all rational solutions of $\ x^2 + 3y^2 = 7 $?
7
$x^2+y^2=2z^2$, positive integer solutions
6
Integer solutions for $\frac{1}{x^2}+\frac{1}{y^2}=\frac{1}{z^2}$?

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