Question

Find the square of 62 by dwandwa yoga method.

Answer 1

the square root of 62 is. 7'87

Answer 2

The square of 62 is 3844.

• To find the square of a number we need to know the dwandwa of certain numbers.

D( a ) = a²

D( ab ) = 2ab

• D of any number is the sum of square of the middle number and two times the product of the other pairs.

• Square of a 2 digit number using dwandwa method is given by :

( ab )² = D( a ) | D( ab ) | D( b )

• Now, (62)² = (ab)² = D( a ) | D( ab ) | D( b )

= 36 | 24 | 4

Since Dwandwa has only one digit , we carry 2 over 24.

• Therefore, it becomes , 36 | ${}_2$ 4 | 4

• Hence the answer is 3844.