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Solve the equation $\tan 2x = 5 \cot x$, 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: “Apply the correct $\tan2A$ identity and write $\cot x=1/\tan x$ to produce an equation in $\tan x$” …
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