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Year 12 Specialist (Unit 3 & 4) Trigonometric functions

Solution of equations.

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Question 1
12924

Solve for \(0^\circ \le \theta \le 360^\circ \): \(\,\,\sec \theta - 2\cos \theta =0\)

\(45^\circ ,135^\circ ,225^\circ ,315^\circ \)

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