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Stack Exchange

kingW3

I'm a programmer who likes math,games and basketball :)

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Top Questions
Top Answers
37
Responding to being told to “smile” by a stranger?
interpersonal.stackexchange.com

23
How should I be avoiding this mistake? (To avoid missing solutions)
math.stackexchange.com

19
Solution to differential equations $y(0)=1$ and $y^{(n)}=y+1$
math.stackexchange.com

17
Simplifying $\sqrt[4]{161-72 \sqrt{5}}$
math.stackexchange.com

17
Is there only one pair of unequal rational numbers with $n^m = m^n$?
math.stackexchange.com

17
Blog post invites people to apply to become CEO of Stack Exchange, Inc., but doesn't indicate how to apply
meta.stackexchange.com

13
Prove $2^{1/3} + 2^{2/3}$ is irrational
math.stackexchange.com

12
Calculate sum of series $\sum \frac{n^2}{n!}$
math.stackexchange.com

11
Proof that $2^{222}-1$ is divisible by 3
math.stackexchange.com

11
What is the 2017th digit (from the right) of $2017^{2016^{2015^{\cdots^1}}}$?
math.stackexchange.com

11
Which numbers is bigger $80^{105}$ or $28^{140}$
math.stackexchange.com

10
Find $r$ knowing that $r=\frac{60}{\sin^{-1}\frac{60}{r}}$
math.stackexchange.com

10
Why do we call primes, and not the number one, *the atoms of numbers*?
math.stackexchange.com

10
For which primes $p$, $p+10$ and $p+14$ are also primes?
math.stackexchange.com

9
Solving this simple simultaneous equation
math.stackexchange.com

8
Calculate $\int_0^\pi{x\sin{x} \over 1+\cos^2x}dx$
math.stackexchange.com

8
Quadratic equation, find $1/x_1^3+1/x_2^3$
math.stackexchange.com

8
Dealing with a friend trying to get me a girlfriend
interpersonal.stackexchange.com

7
Finding summation of inverse of square roots.
math.stackexchange.com

7
How to insist (and convince) on a course of action when you are not in a position of power
interpersonal.stackexchange.com

7
Foundational proof for Mersenne primes
math.stackexchange.com

7
find all functions satisfying $f(x^2)=2xf(x)$
math.stackexchange.com

7
Quadratic Equation - I dont know what I'm doing wrong.
math.stackexchange.com

6
How to solve $\sqrt{x} + \sqrt{x-\sqrt{1-x}} = 1$
math.stackexchange.com

6
Find $\lim_{x\rightarrow \frac{\pi}{4}}\frac{\cos(2x)}{\sin(x-\frac{\pi}{4})}$ without L'Hopital
math.stackexchange.com

6
Sum of $2009$ roots of unity
math.stackexchange.com

6
Proof that ${2x\over 2x-1}={A(x)\over A(x-1)}$ for every integer $x\ge2$, where $A(x)=\sum\limits_{n=0}^\infty\prod\limits_{k=0}^n\frac{x-k}{x+k}$
math.stackexchange.com

6
Trigonometric equation $\cos (5x) = \sin (x)$ - How to find $5x$?
math.stackexchange.com

6
How do I simplify $\frac{\sqrt{21}-5}{2} + \frac{2}{\sqrt{21} - 5}$?
math.stackexchange.com

6
Using induction to prove that $\sum_{r=1}^n r\cdot r! =(n+1)! -1$
math.stackexchange.com

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