Question: 

12+22+32+...............+x2 এর মান কত ?

$\frac{x(x+1)(2 x+1)}{6}$
$\frac{x(x+1)}{2}$
x
$\begin{Bmatrix} \frac{x(x+1)}{2} \end{Bmatrix}^{2}$
Answer: 
$\frac{x(x+1)(2 x+1)}{6}$
Last Updated: 
13/10/2020 - 00:42