Mathematics
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pwerth
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Graduate student at the University of Maryland.

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21
The total number of subsets is $2^n$ for $n$ elements
10
Derivative of absolute function
9
Derivative of $\sqrt{x^{2}}$ at $x=0$
9
How to add numbers with same base but unknown exponents?
8
What is the probability that, when 3 couples are seated around a circular table, no couple sits together?

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