Trigonometry - Exact Trigonometric Values and the Unit Circle
Trigonometry - Exact Trigonometric Values and the Unit Circle
On separate diagrams, draw a diagram showing the quadrant which the rotating line \(OA\) lies in for an angle of
- \(168^\circ\)
- \(-238^\circ\)
- \( 5 \frac{4}{5} \pi\)
In each case, clearly indicate the direction of rotation and find the basic acute angle, \(\alpha\).
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Answer:(a) \(\alpha=12^\circ\), (b) \(\alpha=58^\circ\), (c) \(\alpha=\frac{\pi}{5}\)
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