Lesson overview:Manipulating surds
Surds and trigonometry:
- Rational and irrational numbers
- Introduction to Surds
- Surds and triangles
- Manipulating surds
- Varying the ratio of side lengths in right angle triangles
- The case of 30 and 60 degrees
- The sine ratio
- The sine and cosine ratios
- The sine and cosine ratios for 30 and 60 degrees
- Finding missing sides using sine and cosine for any angle
- Using inverse sine and cosine to find missing angles
- Sine and cosine graphs