Evaluate y=3^-4

$y = 3^{- 4}$

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$y = \frac{1}{3^{4}}$

Raise $3$ to the power of $4$ .

$y = \frac{1}{81}$

The result can be shown in multiple forms.

Exact Form:

$y = \frac{1}{81}$

Decimal Form:

$y = 0.01234567 \dots$