Which expressions can never result in a negative real number when evaluated for any value of x? Select all that apply.

1)
[tex] {x}^{ \frac{ - 3}{5} } [/tex]
2)
[tex] {x}^{ \frac{2}{3} } [/tex]
3)
[tex] {x}^{ \frac{1}{2} } [/tex]
4)
[tex] {x}^{ \frac{1}{3} } [/tex]
5)
[tex] {x}^{ \frac{ - 1}{2} } [/tex]
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