Question

find the value of (5/7)-²​

Answer 1

Answer:

${ \frac{5}{7} }^{ - 2} = \: { \frac{7}{5} }^{2} = \frac{49}{25}$

Answer 2

Answer:

49/25

Step-by-step explanation:

$(\frac{5}{7})^{-2}$=$\frac{5^{-2} }{7^{-2} }$  =

       $\frac{7^{2} }{5^{2} }$ = $\frac{49}{25}$

(Reciprocal of negative powers makes the powers positive.)