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Academics – Mathematics : 2011/MAR/06

Question

Q6. (a) Calculate the size of θ° using the dimensions in Fig Q6(a). (8)

Note: the figure is not drawn to scale

(b) Determine the values of ∅ in the range 0 ≤ ∅ ≤ 2π which satisfy the following equation: (8)

8 sin²∅- 10 sin∅ - 3 = 0

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