(1 2 + 2 2 + 3 2 + ... + 10 2 ) = ? Options: A . &nbsp395 B . &nbsp375 C . &nbsp55 D . &nbsp385

(12 + 22 + 32 + ... +

Question

(1² + 2² + 3² + ... + 10²) = ?

Options:

A . 395

B . 375

C . 55

D . 385

Answer: Option D

Answer : Option D

Explanation :

$MF#%1^2 + 2^2 + 3^2 + \cdots + n^2 = \sum{n^2} = \dfrac{n(n+1)(2n + 1)}{6}$MF#%

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