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The value of m for which [{(1/(7^2))^(-2...

The value of `m` for which `[{(1/(7^2))^(-2)}^(-1/3)]^(1/4)=7^m ,`

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`[{(1/(7^2))^(-2)}^(-1/3)]^(1/4)=7^m ,`
`[(7^4)^(-1/3xx1/4) ]`

`1/7^(1/3) = 7^m `
`7^(-1/3) =7^m`
` m = -1/3`
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