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3.5 Trigonometry (A-level only)

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Question 49

Solve, for −180≤y≤180-180 \leq y \leq 180−180≤y≤180, the equation,

3tan⁡2y−sec⁡2y+sec⁡y=3 3\tan^2y - \sec^2y + \sec y = 3 3tan2y−sec2y+secy=3

Give your answers to 1 decimal place where appropriate.

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3.5 Trigonometry (A-level only) Questions

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