Question

state wheather the no. (root2-root3)(root2+root3) is rational or irrational

Answer 1

HEY!!

The answer is here

$( \sqrt{2} - \sqrt{3} )( \sqrt{2} + \sqrt{3})$

$= > ({ \sqrt{2} })^{2} - ( { \sqrt{3} })^{2}$

=> 2-3

=>-1

Hence it is a rational number.

:-)Hope it helps u.