Question: 5. Ify = 2x - 3 dy then dx x= 1 = 4 a U E. 2 6. If f(x) = x cos x, then

5. Ify = 2x - 3 dy then dx x= 1 = 4 a U E. 2 6. If f(x) = x cos x, then f'(x) = A. cos x + sin x B. x(cos x + sin x) C. cos x - x sin x D. x(cos x - sin x) E. cos x + x sin x

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