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Q5. a) Draw the graph of y = 3sinθ - cosθin the range θ = 0 to 4 radian

in the Intervals of 0.5 radians. (9)

Suggested scales: horizontal axis 2cm = 0.5

vertical axis 2cm = 0.5

b) Use the graph drawn in Q5 " ("a")"to estimate the solutions to EACH of the following equations.

i) 3sinθ - cosθ = 1. (3)

ii) 3sinθ = cosθ (4)