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#163 Bangla Language & Literature General Level 22331

<p>1<sup>2</sup>+2<sup>2</sup>+3<sup>2</sup>+...............+x<sup>2 এর মান কত ?<br /></sup></p>

  1. A $\begin{Bmatrix} \frac{x(x+1)}{2} \end{Bmatrix}^{2}$
  2. B $\frac{x(x+1)(2 x+1)}{6}$
  3. C $\frac{x(x+1)}{2}$
Answer: B - $\frac{x(x+1)(2 x+1)}{6}$

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