On a copy of the axes below sketch, for 0 x 2, the graph of

Question:

On a copy of the axes below sketch, for 0 ≤ x ≤ 2π, the graph of

a. y = cos x – 1

b. y = sin 2x.


c. State the number of solutions of the equation cos x – sin 2x = 1, for 0 ≤ x ≤ 2π.

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