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Mathematics
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Lazy Lee's user avatar
Lazy Lee's user avatar
Lazy Lee
  • Member for 7 years, 5 months
  • Last seen more than 1 year ago
  • California, United States
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About

I'm a graduate student in California working on interesting topics in EECS.

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11
proof that $n^4+22n^3+71n^2+218n+384$ is divisible by $24$
Jul 13, 2017
answer
8
To prove $\sum_{cyc}\frac{1}{a^3+b^3+abc} \le \frac{1}{abc}$
May 2, 2017
answer
8
Prove that a real polynomial $x^n+ a_1x^{n-1}+ \cdots +a_n$ cannot be completely resolved into linear factors if $a_1^2<a_2$.
Jun 7, 2017
answer
8
Any integer in 99, 999, 9999... sequence is not a perfect square
May 15, 2017
answer
7
Simplifying expression $\sqrt{6+2\sqrt{5}} - \sqrt{6-2\sqrt{5}}.$
Apr 30, 2017
answer
6
Recurrence relation with variable $x$ in the denominator.
May 16, 2017
answer
6
Prove $\frac{1}{r} = \frac{1}{a} + \frac{1}{b}$ for a semicircle tangent within a right triangle
May 17, 2017
answer
6
Find all positive integer triplets $(x,y,z)$ in $x!+y!=15\cdot 2^{z!}$
May 18, 2017
answer
5
if $S_{n+1}=\frac{4+3S_{n}}{3+2S_{n}}$ find $\lim_{n \to \infty} S_{n}$
Apr 7, 2017
answer
5
problem in understanding The Z channel
Jun 10, 2017
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