| Exam Board | CAIE |
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| Module | P1 (Pure Mathematics 1) |
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| Year | 2023 |
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| Session | March |
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| Topic | Trig Equations |
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7
- By first obtaining a quadratic equation in \(\cos \theta\), solve the equation
$$\tan \theta \sin \theta = 1$$
for \(0 ^ { \circ } < \theta < 360 ^ { \circ }\).
- Show that \(\frac { \tan \theta } { \sin \theta } - \frac { \sin \theta } { \tan \theta } \equiv \tan \theta \sin \theta\).