Rewrite the following expression in radical form.
1.
[tex]a \frac{2}{5} [/tex]
2.
[tex]3 \frac{xy}{2} [/tex]
3.
[tex](a + b) \frac{2}{3} [/tex]
4.
[tex]7x \frac{1}{3} [/tex]
5.
[tex](m \frac{4}{15} ) ^{5} [/tex]
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