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Let f(1)=3, f'(1)= frac{-1}{3}. g(1)=-4,...

Let `f(1)=3, f'(1)= frac{-1}{3}. g(1)=-4`, and `g'(1) = frac{-8}{3}`, The derivative of `sqrt ([f(x)]^2 + [g(x)]^2)` wrt x at x=1 is .......... A) -29/15 B) 44380 C) 31/15 D) 29/15

A

-29/15

B

44380

C

31/15

D

29/15

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