For $a 0$, the principal $n$-th root of $a$ is denoted $\sqrt[n]{a}$ and is:

Question

For $a > 0$, the principal $n$-th root of $a$ is denoted $\sqrt[n]{a}$ and is:

Accepted Answer

always positive

Answer

always negative

Answer

zero

Answer

either positive or negative

For a>0a > 0a>0, the principal nnn-th root of aaa is denoted an\sqrt[n]{a}na​ and is: