User Anirban Niloy - Mathematics Meta Stack Exchange

Anirban Niloy

Member for 4 years, 2 months
Last seen more than 4 years ago

Faridpur, Bangladesh

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Born: 4th September, 2002.

I think, it is enough information about me.

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6

Prove that $0!+1! + 2! + 3! + ..... + n!$ $\neq$ $p^\text{r}$, where $n \geqslant 3$ and $n$, $p$ and $r$ are three integers

5

In a right angled $\triangle ABC$, $DE$ and $DF$ are perpendicular to $AB$ and $BC$ respectively. What is the probability of $DE\cdot DF>3$?