Differentiate the function: cosx f (x) %3D Select one: cosx + x•sinx f '(x) x2 a. -x'sinx – cosx f '(x) O b. x2 х'sinx - сosx f '(x) x2 —х-sinx - соsx f '(x) O d.

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Q: Find f′(x) for the function: (a) ​f(x)= 3w^9-7w/5w (b) f(x)= 3x-5/x-5

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