Bantuin ya, yang bisa jawab.

1.
[tex] \frac{1}{ \sqrt[6]{3 {a}^{3} {b}^{4} } } [/tex]
2.
[tex] \sqrt{ {2}^{6}a } + \sqrt{ {3}^{6} {a}^{4} } \\ = \: \sqrt{ {2}^{6}{3}^{6}{a}^{5}}[/tex]
3.
[tex] \frac{ \sqrt{ {b}^{2} } }{ \sqrt[3]{ {a}^{2} } } [/tex]