Question

simplify - [9^-2 by 4^-2] 1/4​

Answer 1

$\Large\bf\underline\red{Answer}$

$\longrightarrow$ ${9}^-² by {4}^-²$×$\frac{1}{4}$

$\longrightarrow$$\frac{1}{9²}$by$\frac{1}{4²}$×$\frac{1}{4}$

$\longrightarrow$$\frac{1}{9×9}$÷$\frac{1}{4×4}$×$\frac{1}{4}$

$\longrightarrow$$\frac{1}{81}$÷$\frac{1}{16}$×$\frac{1}{4}$

$\longrightarrow$$\frac{1}{81}$×${16}$×$\frac{1}{4}$

$\longrightarrow$$\frac{4}{81}$

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