Answer: Second Option
5 to the power of 1 over 6
Explanation:
The square root of the cubic root of 5 is written as follows
![\sqrt[2]{\sqrt[3]{5}}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/yted7osebt871l9qt29kfgx9dy3vfl59dp.png)
Now use the following property of the roots
![\sqrt[m]{\sqrt[n]{x}}=\sqrt[m*n]{x}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/zhib8pk04b05w7zw2qkffzt18k07wtfztq.png)
In this case
and
and

So we have that
![\sqrt[2]{\sqrt[3]{5}}=\sqrt[2*3]{5}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/bj1odf9xle2bn2d56sr1v64w9ycrsu531s.png)
![\sqrt[2*3]{5}=\sqrt[6]{5}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/c1c195rw3s2omi9wnjmyzmubk1o54p8epl.png)
Now use the following property
![\sqrt[n]{x^h}=x^{(h)/(n)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/7zxljn2tiob89bwg1sbudeshzhx9g1mwli.png)
So we have that:
![\sqrt[6]{5}=5^{(1)/(6)}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/kp6srcwwzpxxhftgpi1dz2f90jcbzczmoj.png)
The answer is the second option
5 to the power of 1 over 6