Question

simplify and express as rational number ​

Answer 1

Answer:

$\frac {25}{49}$

Step-by-step explanation:

$\frac {5}{7}$ ^5 × $\frac {5}{7}$ ^-3

As the bases are same and we are multiplying the numbers. so the powers will be added.

=> $\frac {5}{7}$ ^(5+(-3))

=> $\frac {5}{7}$ ^2

=> $\frac {5^2}{7^2}$

=> $\frac {25}{49}$

PLS MARK IT BRAINLIEST!!!!!!