Given y = f(u) and u = g(x), find dy/dx = f'(g(x))g'(x).y = sin u, u = 2x + 15
A. - cos (2x + 15)
B. 2 cos (2x + 15)
C. cos (2x + 15)
D. - 2 cos (2x + 15)
Answer: B
Mathematics
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