Trigonometry and Modelling

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Question 65
Medium
i.

Solve, for 0<θ<π0 < \theta < \pi0<θ<π 3sec⁡θ=8sin⁡θ3 \sec \theta = 8 \sin \theta3secθ=8sinθ giving your answers, in radians, to 3 significant figures.

[4]
ii.

Solve, for 0<x<180∘0 < x < 180^\circ0<x<180∘ tan⁡3x−tan⁡22∘1+tan⁡3xtan⁡22∘=0.8\frac{\tan 3x - \tan 22^\circ}{1 + \tan 3x \tan 22^\circ} = 0.81+tan3xtan22∘tan3x−tan22∘​=0.8 giving your answers, in degrees, to one decimal place.

[4]

Trigonometry and Modelling Questions

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