Question

9...................

Answer 1

For this case we must evaluate the following expression:

`\sqrt [4] {16}`

We have by definition of properties of powers and roots that:

`\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}`

On the other hand, we can rewrite the 16 as:

`16 = 2 * 2 * 2 * 2 = 2 ^ 4`

So:

`\sqrt [4] {16} = \sqrt [4] {2 ^ 4} = 2 ^ {\frac {4} {4}} = 2 ^ 1 = 2`

ANswer:

Option D