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If Y = X7 Cos X, Find Dy/dx

Question 44

Multiple Choice

If y = x7 cos x, find dy/dx.


A) 7x6 cos x + x7 sin x
B) 7x6 sin x - x7 cos x
C) 42x5 cos x - 14x6 sin x - x7 cos x
D) 42x5 cos x - 14x6 sin x
E) 7x6 cos x - x7 sin x

Correct Answer:

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