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Mathlete
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27
Prove that the only eigenvalue of a nilpotent operator is 0?
Apr 25, 2013
13
Prove projection is self adjoint if and only if kernel and image are orthogonal complements
Nov 28, 2013
8
Derive the expected value for a Pareto distribution?
Nov 24, 2012
7
Determine whether this series is absolutely convergent, conditionally convergent or divergent?
Dec 1, 2012
5
Derive the PDF of the log-normal distribution?
Apr 22, 2013
3
Use Cauchy's Multiplication Theorem and the Binomial Theorem to prove $\exp(x+y)=\exp(x)\exp(y)$
Dec 1, 2012
3
Evaluate the integral of a function defined by an infinite series
Nov 10, 2013
3
Probability density function of $W = X + Y$ where $X \sim \mathrm{Unif}[0,1]$ and $Y \sim \mathrm{Exp}(\lambda)$ are independent random variables?
May 11, 2013
3
How can one define the trace of a linear operator on any finite dimensional vector space, using the fact that $tr(A) = tr(P^{-1}AP)$?
May 2, 2013
3
Show that the sum of the largest odd divisors of $n+1, n+2, \ldots, 2n$ (where $n$ is a natural number) is a perfect square?
Dec 30, 2012
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12
How to find the expected distance between two uniformly distributed points?