Question

Efectuati calculele:

Answer 1

c) la impartirea puterilor cu aceeasi baza exponentii se scad deci, raspunsul este 
$( \frac{7}{11})^1= \frac{7}{11}$
d)$(\frac{-3}{7})^2= \frac{9}{49}$
e)[($\frac{1}{2})^2]^-3=( \frac{1}{2})^-6$
f)$(\frac{1}{3} ^{-1}) ^{-2} =( \frac{1}{3})^2= \frac{1}{9}$