Question

Whats the answer of these questions ​

Answer 1

Answer:

4/81

Step-by-step explanation:

hope this helps you better

Answer 2

$\frac{9}{2}^{ - 2}$

=

$\frac{2}{9}^{2}$

=

$\frac{2 \times 2}{9 \times 9}$

=

$\frac{4}{81}$

step by step explanation:-

any rational number with power negative is said to be inverse. the formula is:-

$\frac{a}{b}^{ - c} = \frac{b}{a} ^{c}$