Answers

2014-08-21T17:57:23+05:30
Are u wanna know about '√'?
let a number N = X×X×Y×Y =  X^{2}  Y^{2}
you have to find √N.
then,  \sqrt{N}   = \sqrt{ X^{2}  Y^{2} } = XY
Ex;- (1)  . \sqrt{9} = ?
 \sqrt{9} =  \sqrt{3*3} =  \sqrt{ 3^{2} } =3
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