| Exam Board | AQA |
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| Module | C3 (Core Mathematics 3) |
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| Year | 2013 |
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| Session | June |
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| Topic | Reciprocal Trig & Identities |
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4 By forming and solving a quadratic equation, solve the equation
$$8 \sec x - 2 \sec ^ { 2 } x = \tan ^ { 2 } x - 2$$
in the interval \(0 < x < 2 \pi\), giving the values of \(x\) in radians to three significant figures.