(√7 + √7)2= কত-

A 98

B 49

C 28

D 21

Solution

Correct Answer: Option C

(2√7)2 = (2√7) × (2√7) 

= 4 × (√7 × √7) 

= 4 × 7 

= 28

So, (√7 + √7)2 = 28.

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