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For $0^{\circ} < x < 180^{\circ}$, solve $\tan(x + 45^{\circ}) = 2\cot x$.
Mathematics 9709 · AS & A Level · Trigonometry
Trigonometry — practice question
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Use the correct $\tan(A+B)$ identity to form an equation in $\tan x$, or else in $\sin x$ and $\cos x$” …
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