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1.7.15 Sec, cosec and cot functions (A-level only)

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Question 11

Solve, for 0≤x≤3600 \leq x \leq 3600≤x≤360, the equation,

tan⁡2x+4sec⁡x−2=0 \tan^2x + 4\sec x - 2 = 0 tan2x+4secx−2=0

Give your answers to 1 decimal place.

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1.7.15 Sec, cosec and cot functions (A-level only) Questions

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