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If g is the inverse function of f and `f'(x)= frac{1}{1+x^7}`, then the value of g'(x)........ A) 1+`x^7` B) `frac{1}{1+[g(x)]^7}` C) `1+[g(x)]^7` D) `7x^6`

A

1+`x^7`

B

`frac{1}{1+[g(x)]^7}`

C

1+`[g'(x)]^7`

D

7`x^6`

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