What is the derivative of $y = \sin^2(3x + \pi/6)$?
University of Ilorin MTH102 2025A past question
- $3\sin(6x + \pi/3)$
- $6\sin(3x + \pi/6)\cos(3x + \pi/6)$
- $3\cos^2(3x + \pi/6)$
- $\sin(6x + \pi/3)$
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