Mathematics 9709 · AS & A Level · Trigonometry

Trigonometry — practice question

(main)[4]

Find the solutions of the equation $\sec \theta = 5 \cosec \theta$ for $0^\circ < \theta < 360^\circ$.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: Apply $\sec\theta=\frac{1}{\cos\theta}$ and $\cosec\theta=\frac{1}{\sin\theta}$, or another suitable identity

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