Evaluate (1/81)^(1/2)

${(\frac{1}{81})}^{\frac{1}{2}}$

Step 1

Simplify the expression.

Apply the product rule to $\frac{1}{81}$ .

$\frac{1^{\frac{1}{2}}}{81^{\frac{1}{2}}}$

One to any power is one.

$\frac{1}{81^{\frac{1}{2}}}$

Step 2

Simplify the denominator.

Rewrite $81$ as $9^{2}$ .

$\frac{1}{{(9^{2})}^{\frac{1}{2}}}$

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$\frac{1}{9^{2 (\frac{1}{2})}}$

Cancel the common factor of $2$ .

Cancel the common factor.

$\frac{1}{9^{2 (\frac{1}{2})}}$

Rewrite the expression.

$\frac{1}{9^{1}}$

Evaluate the exponent.

$\frac{1}{9}$

Step 3

The result can be shown in multiple forms.

Exact Form:

$\frac{1}{9}$

Decimal Form:

$0.\overline{1}$