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The derivative of f(x) = x^(-3) (3 + 7.x...

The derivative of `f(x) = x^(-3) (3 + 7.x)` is

A

`(9)/(x^(4) - (14)/(x^(3))`

B

`- (9)/(x^(4)) - 14 x^(3)`

C

`(9)/(x^(4)) + (14)/(x^(2))`

D

`-(9)/(x^(4)) - (14)/(x^(3))`

Text Solution

Verified by Experts

The correct Answer is:
D
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