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Solve the equation $\tan(45^\circ - x) = 2\tan x$, and give all solutions for $0^\circ < x < 180^\circ$.
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: “Try using the $\tan(A+B)$ formula to derive an equation in $\tan x$” …
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