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If a ,\ m ,\ n are positive integers, th...

If `a ,\ m ,\ n` are positive integers, then `{root(m)(sqrt a)}^(m n)` is equal to `a^(m n)` (b) `a` (c) `a^(m/n)` (d) 1

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`{root(m)(sqrt a)}^(m n) `
We know for any non-zero number a,
`=((a^(1/n))^(1/m))^(mn)`
`((a)^(1/(mn)))^(mn)`
`a^((mn)/(mn))`
`a`
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