Question

Ayudaaa

[√10/√5]-²=
[√14/√7]-⁴=
Es para hoy EXAMEN

Answer 1

$[ \frac{ \sqrt{10} }{ \sqrt{5} } ] ^{-2} =[ \frac{ \sqrt{5} }{ \sqrt{10} }]^2= \frac{5}{10}= \frac{1}{2}$
$[ \frac{ \sqrt{14} }{ \sqrt{7} } ] ^{-4}=[ \frac{ \sqrt{7} }{ \sqrt{14} }]^4= \frac{7^2}{14^2}= \frac{49}{196}= \frac{1}{4}$