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Mathematics
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abel

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

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  • Member for 8 years, 1 month
  • 3,733 profile views
  • Last seen Apr 18 at 16:11

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Top posts (1,619) All Questions Answers | Votes Newest

28 Does the square or the circle have the greater perimeter? A surprisingly hard problem for high schoolers Mar 13 '15
17 Show that $f(x) = \frac{x^3}{1+x^2}$ is bijective Feb 1 '15
15 Limit of $\frac{1}{\sqrt[n]{n!}}$ as $n$ approaches infinity Feb 11 '15
15 Finding the circles passing through two points and touching a circle Apr 11 '11
13 Matrices such that $M^2+M^T=I_n$ are invertible May 18 '15
12 Why are eigenvalues of nilpotent matrices equal to zero? May 4 '15
11 Show that 1 and -1 are the only eigenvalues of this linear transformation May 25 '15
11 Non-zero eigenvalues of $AA^T$ and $A^TA$ Dec 31 '14
10 $\sin x + c_1 = \cos x + c_2$ May 29 '15
10 Prove that equation $x^6+x^5-x^4-x^3+x^2+x-1=0$ has two real roots Apr 2 '15
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