Question

Exercitiul 20 . a si e

Answer 1

$a) \\ \\ \sqrt{6 - 4 \sqrt{2} } + \sqrt{6 + 4 \sqrt{2} } \\ ridicam \: la \: patrat \\ 6 - 4 \sqrt{2} + 6 + 4 \sqrt{2} \\ 12$

$e) \\ \\ \sqrt{20 + 6 \sqrt{11} } - \sqrt{20 - 6 \sqrt{11} } \\ 20 + 6 \sqrt{11} - 20 + 6 \sqrt{11} \\ 12 \sqrt{11}$