Question

04) Simplique A Expressão

___1____. - ___1____ =
3 + √2. . 3 - √2 ​

Answer 1

$\frac{1}{3 + \sqrt{2} } - \frac{1}{3 - \sqrt{2} } \\ \frac{3 - \sqrt{2} }{7} - \frac{3 + \sqrt{2} }{7} \\ \frac{3 - \sqrt{2} - (3 + \sqrt{2} )}{7} \\ \frac{3 - \sqrt{2} - 3 - \sqrt{2} }{7} \\ \frac{ - \sqrt{2} - \sqrt{2} }{7} \\ \frac{ - 2 \sqrt{2} }{7} \\ \boxed{\boxed{\boxed{ - \frac{2 \sqrt{2} }{7} }}}$

att. yrz