Mathematics 9709 · AS & A Level · Trigonometry

Trigonometry — practice question

(main)[4]

Solve the equation $\sec^2 \theta + \tan^2 \theta = 5\tan \theta + 4$ for $0^{\circ} < \theta < 180^{\circ}$. Include all working needed.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Apply the identity $\sec^2\theta = 1 + \tan^2\theta$” …

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