Question

É pra racionalizar:

28
__
14√2

Answer 1

$\frac{28}{14 \sqrt{2} } . \frac{14 \sqrt{2}}{14 \sqrt{2}} = \frac{392 \sqrt{2} }{14.14. \sqrt{2}. \sqrt{2} } = \frac{392 \sqrt{2}}{196.2} = \frac{392 \sqrt{2}}{392} = \sqrt{2}$