Question

SOLVE THE FOLLOWING QUESTION!

1) Evaluate:
$1) \: ({4}^{-1} + {7}^{-1}+ {8}^{-1})$
$2) ( \frac{5}{3}) {}^{7} \times ( \frac{3}{5}) {}^{ - 4}$
$3) (( \frac{-5}{8})^{-4})^{ - 7}$


​

Answer 1

Are u writing exam??