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1 markPaper 1 · Multiple choiceDerivatives of sin ax and cos ax

CSEC Additional Mathematics · 2015 · Paper 1 · Question Q37

Given that y = \cos 2x, then \frac{dy}{dx} =

  1. (A)\sin 2x
  2. (B)-\frac{1}{2}\sin 2x
  3. (C)-2\sin 2x
  4. (D)2\sin 2x

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