677 reputation
316
bio website stackoverflow.com/users/…
location Netherlands
age 18
visits member for 2 years, 4 months
seen 7 hours ago

Programmer, math lover, student.


Nov
20
revised Prove that $ \sum_{1 \le t \le n, \ (t, n) = 1} t = \dfrac {n\phi(n)}{2} $
Removed \displaystyle in the title.
Jul
19
revised How to prove that $\frac{\sin \pi x}{\pi x}=\prod_{n=1}^{\infty}(1-\frac{x^2}{n^2})$
improved grammar and formatting
Jul
6
revised How to find the minimum value of this expression?
improved formatting
Jun
22
revised Five people arrange themselves in five consecutive seats.
edited tags
Jun
16
revised choosing $5$ non consecutive books from a shelve of $12$
improved proof
Jun
13
revised Proving there are no integer solutions for $3x^2=9+y^3$
expanded proof
Jun
13
revised Proving there are no integer solutions for $3x^2=9+y^3$
added question
Jun
13
revised Inverse Trigonometry doubt.
improved formatting
May
31
revised Counting squares of maximum size in a rectangle
improved formatting
May
30
revised Simplifying $a(a-2) = b(b+2)$
clarified
May
29
revised Power tower inequality
added link to wikipedia page about power towers
May
25
revised How is “n+n/2+n/4…1” equal to “2n-1” using the formula for geometric series?
improved formatting
May
25
revised How is “n+n/2+n/4…1” equal to “2n-1” using the formula for geometric series?
improved formatting
Jan
9
revised Is the term true? $\frac{\theta}{\theta - 1 } = \frac{1} {\theta-1} + 1$
improvedd formatting
Nov
6
revised How is each factor of an expression called?
deleted 21 characters in body