Tour
About Us
Meta
Loading…
current community
Stack Exchange
chat
Meta Stack Exchange
your communities
Sign up
or
log in
to customize your list.
more stack exchange communities
company blog
Log in
Stack Exchange
All Sites
Top Users
Digests
Anirban Niloy
top
accounts
reputation
activity
subscriptions
Top Questions
6
votes
Prove that $0!+1! + 2! + 3! + ..... + n!$ $\neq$ $p^\text{r}$, where $n \geqslant 3$ and $n$, $p$ and $r$ are three integers
real-analysis
sequences-and-series
number-theory
summation
factorial
asked Feb 19, 2019 at 5:23
math.stackexchange.com
5
votes
In a right angled $\triangle ABC$, $DE$ and $DF$ are perpendicular to $AB$ and $BC$ respectively. What is the probability of $DE\cdot DF>3$?
probability
geometry
contest-math
triangle
asked Feb 4, 2019 at 11:16
math.stackexchange.com
5
votes
Prove that inequality $\sqrt{2\sqrt{4\sqrt{8....\sqrt{2^n}}}} \leqslant n+1$
real-analysis
inequality
contest-math
radicals
nested-radicals
asked Feb 17, 2019 at 5:10
math.stackexchange.com
Top Answers
6
Finding lengths when circles and squares tangents.
math.stackexchange.com
Stack Exchange works best with JavaScript enabled
math.stackexchange.com