Mathematics 9709 · AS & A Level · Trigonometry

Trigonometry — practice question

(main)[4]

Solve the equation $\sin^{-1}(4x^4 + x^2) = \frac{1}{6}\pi$.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Set up the equation $4x^2+x^2=\frac12$” …

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