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Mathematics
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user26486
  • Member for 12 years, 5 months
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25
Prove that if $x_1,x_2,\ldots,x_n>0$, then $(1+x_1)(1+x_1+x_2)\ldots(1+x_1+x_2+\ldots+x_n) \ge \sqrt{(n+1)^{n+1}}\sqrt{x_1x_2\ldots x_n}$.
Dec 22, 2013
19
prove that the equation has just one root.
May 18, 2015
19
Prove the inequality using AM-GM inequality
Jun 22, 2015
18
Using the Limit definition to find the derivative of $e^x$
Apr 5, 2015
15
Why can ALL quadratic equations be solved by the quadratic formula?
Feb 3, 2015
12
diophantine equation $x^3+x^2-16=2^y$
Apr 18, 2015
12
Compare two powers of numbers without common divisor
Jun 1, 2015
12
Is it a composite number?
Jun 17, 2015
12
Prove that $\gcd(a^n - 1, a^m - 1) = a^{\gcd(n, m)} - 1$
May 17, 2015
11
If $a^4+b^4\in\mathbb Q$ and $a^3+b^3\in\mathbb Q$ and $a^2+b^2\in\mathbb Q$, prove that $a+b\in\mathbb Q$ and $ab\in\mathbb Q$.
May 22, 2014

Top Meta posts

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There should be a way to edit bounty text.
9
Do questions with LaTeX in titles appear in Hot Questions?
7
How can I search my comments with keywords?
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Why doesn't [link description](URL) work for me in the comments?

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No confirmation pop up when deleting comments (Android app)
6
"New York is a great place to live." (no preposition?)
5
"This can make us think the concepts are related, which in fact they are not."
5
"New York is a great place to live." (no preposition?)