Rearranging to one ratio

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Other lessons in this sub-strand

1. Ratios on the unit circle
2. Angles from 90 to 180 degrees
3. The third and fourth quadrants
4. Negative angles and full turns
5. Equations from 0 to 360 degrees
6. Rearranging to one ratio
7. The radian
8. Degrees and radians either way
9. Graphs of sine and cosine
10. The graph of tangent
11. The sine rule
12. The cosine rule