Question

racionalize denominador das frações ​

Answer 1

Resposta:

$a) \frac{3}{ \sqrt{2} } \times \frac{ \sqrt{2} }{ \sqrt{2} } = \frac{3 \times \sqrt{2} }{ \sqrt{2 \times 2} } = \frac{3 \sqrt{2} }{ \sqrt{4} }$

$\frac{3 \sqrt{2} }{2}$

$b) \frac{9}{4 \sqrt{2} } \times \frac{ \sqrt{2} }{ \sqrt{2} } = \frac{9 \times \sqrt{2} }{4 \sqrt{2 \times 2} } = \frac{9 \sqrt{2} }{4 \sqrt{4} }$

$\frac{9 \sqrt{2} }{4 \times 2} = \frac{9 \sqrt{2} }{8}$