Question

(√10-√11)^2 use identity

Answer 1

$( {a - b)}^{2} = {a}^{2} + {b}^{2} - 2ab$

$( { \sqrt{10} - \sqrt{11} ) }^{2}$

$10 + 11 - 2 \sqrt{110}$

$21 - 2 \sqrt{110}$