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How to find square root of 674​

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Square of 26 is 676.

(674)1/2​ = (676-2)1/2​

             = 26(1 - 2/676)1/2

            = 26(1 - 2/(2x676)) {By bionomial approximation}

           = 26 (1- 0.0014)

           = 25.96

Posted by

Ravindra Pindel

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