Differentiate.f(x) = (3x5 - 5x4 + 3)309
A. f'(x) = 309(3x5 - 5x4 + 3)308(15x4 - 20x3)
B. f'(x) = 309(3x5 - 5x4 + 3)308(5x4 - 4x3)
C. f'(x) = 309(15x4 - 20x3)308
D. f'(x) = 309(3x5 - 5x4 + 3)308
Answer: A
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