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Find the square root of 51 upto 2 decimal places

Answers (1)

(51)1/2 =  (49 + 2)1/2 

  = 7 (1 + 2/49)1/2 

Using bionomial expansion

= 7 (1 + 2/(49x2))

= 7(1+1/49)

= 7.14

Posted by

Ravindra Pindel

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