Question

Calcule:
$( \frac{1}{2} ) {}^{ - 1}$
$( \frac{1}{2} ) {}^{ - 2}$
$(\frac{ - 1}{4} ) {}^{ - 1}$
$( \frac{ - 1}{3} ) { }^{ - 2}$
$( \frac{2}{3} ) {}^{ - 1}$
$( \frac{ - 2}{5} ) {}^{ - 2}$
$( \frac{ - 5}{3} ) {}^{ - 3}$
$- ( \frac{ - 1}{6} ) {}^{ - 1}$
$- ( \frac{ - 1}{3} ) {}^{ - 2}$
$- ( \frac{ - 3}{2}) {}^{ - 3}$

Answer 1

A) 1
B)+1/4
C) 1
D)+1/9
E)1
F)+4/10
G)+30/27
E) 1