Question

What is the value of the expression 3^-4?

Answer 1

$3^{-4} = \frac{1}{3^4} =\frac{1}{3\times 3\times 3 \times 3} =\frac{1}{9 \times 9} =\boxed{\bf{\frac{1}{81}}}$

Your answer is D. 1/81