Question

A expressão √300/3 . √3/10 é igual a:

Answer 1

$\frac{ \sqrt{300} }{3} * \frac{ \sqrt{3} }{10} = \frac{ \sqrt{900} }{3*10} = \frac{30}{30} = 1$

Alternativa b

Answer 2

$\frac{ \sqrt{300} }{3} \times \frac{ \sqrt{3} }{10}$
$\frac{10 \sqrt{3} }{3} \times \frac{ \sqrt{3} }{10} \\ \\ \frac{ \sqrt{3} }{3} \times \sqrt{3} \\ \\ \frac{3}{3} \\ \\ 1$


R: ( B )