Question

3 -² = Evaluate each expression.

Answer 1

The answer is one because 3-2 =1 I hope it helps

Answer 2

For this case we must evaluate the following expression:

$3 ^ {-2}$

By definition of power properties we have to:

$a ^ {- 1} = \frac {1} {a ^ 1} = \frac {1} {a}$

Now, we can rewrite the expression as:

$\frac {1} {3 ^ 2} = \frac {1} {9}$

Finally we have to:

$3 ^ {- 2} = \frac {1} {9}$

Answer:

$3 ^ {- 2} = \frac {1} {9}$