Question

Calculati:
$\sqrt{ \sqrt{2} + 3 } - \sqrt{ 1 - \sqrt{2} }$
​

Answer 1

Spune-mi daca nu intelegi.

Answer 2

$\bf \sqrt{( \sqrt{2 + 3})^{2}} -\sqrt{(1 - \sqrt{2})^{2}} =$

$\bf | \sqrt{2} + 3 | - |1 - \sqrt{2} | =$

$\bf | \sqrt{2} + 3 | > 0$

$\bf |1 - \sqrt{2} | < 0$

$\bf \sqrt{2} + 3 - ( \sqrt{2} - 1) =$

$\bf \sqrt{2} + 3 - \sqrt{2} + 1 =$

$\bf \not\sqrt{2} + 3 - \not \sqrt{2} + 1 =$

$\bf 3 + 1 =$

$\boxed {\bf 4}$

☆☆☆ Mult succes! ☆☆☆