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Other parts of this question

  1. 3(a)Prove that (1 - \sin\theta)/(1 + \sin\theta) = (\sec\theta - \tan\theta)^2.[9 marks]
  2. 3(b)Solve the equation 2\cos^2 x - 3\sin x = 3 for 0 \le x \le 2\pi.[9 marks]
  3. 3(c)Show that \cos(\pi/2 + x) = -\sin x.[4 marks]

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