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Q18: Question – Paper 6 – November 2018
Q18: Question – Paper 6 – November 2018
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Question
18 a) Sketch the graph of y = cos x + 1 for 0° ≤ x ≤ 720°.
[3 marks]
b) Explain why the equation cos x + 1 = 2.7 has no solutions.
[1 mark]