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user29999

Apparently, this user prefers to keep an air of mystery about them.

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Top posts (223) All Questions Answers | Votes Newest

67 Solving $5^n > 4,000,000$ without a calculator Jul 31 '12
35 Equivalent Definitions of the Operator Norm Jul 15 '12
32 Prove $ \sin(A+B)\sin(A-B)=\sin^2A-\sin^2B $ Jul 25 '12
11 Prove $\cos 3x =4\cos^3x-3\cos x$ Jul 27 '12
11 Is the product of two sets well-defined if one is empty Jul 31 '12
10 Understanding a theorem concerning Sobolev spaces Aug 5 '12
10 A type of local minimum (2) Aug 18 '12
10 $\det(I+A) = 1 + tr(A) + \det(A)$ for $n=2$ and for $n>2$? Aug 1 '13
9 $W^{1,p} $ and $W^{2,p}$ Estimates. Jul 11 '13
9 Limit point versus limit and implications for convergence Aug 15 '12
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