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Physics
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John
  • Member for 7 years, 8 months
  • Last seen more than 7 years ago
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15
What is a subsequence in calculus?
11
What is melting? Which bonds do we break to melt something?
9
How to solve a system of linear equations modulo n?
8
If $A$ is an $n$ by $n$ integer matrix such that $A^3 = I$, then $\operatorname{tr}(A) = n\mod3$
7
Prove that $tr(A)^p = tr(A^p)\bmod p$ where $A$ is a square integer matrix and $p$ is a prime number.