Given y = f(u) and u = g(x), find dy/dx = f'(g(x))g'(x).y = csc u, u = x6 + 8x
A. -(6x5 + 8) csc x cot x
B. -(6x5 + 8) csc (x6 + 8x) cot (x6 + 8x)
C. - csc (x6 + 8x) cot (x6 + 8x)
D. -(6x5 + 8) cot2(x6 + 8x)
Answer: B
Mathematics
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