Simplified form of [ (\\sqrt^7 { {x}^{-2 \/ 7}} )^{ \frac{-7}{2}} ]^{7} is :

SSC CGL 12 Jun 2019 Shift 2 Paper

Question : 55 of 100

Marks: +1, -0

Simplified form of

\ [\ (\√^7 {\ {x}^{-2 \/ 7}}\ )^{\ {-7}/{2}}\ ]^{7}

is :

Solution:

\ [\ (\√^7 {\ {x}^{-2 \/ 7}}\ )^{\ {-7}/{2}}\ ]^{7}

=x\ [\ { (- {2}/{7}\ )\ (- {7}/{2} ) 7}/{7}\ ]

=x

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