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Chapter 8

Chapter 8. Graphs of Trigonometric Functions. Using Quadrants to measure angles. The SIN graph – learn its properties. y = sinx. The COS graph – learn its properties. y = cosx. The TAN graph – learn its properties. y = tanx. Which quadrants are positive for Sin x, Cos x and Tan x?.

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Chapter 8

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  1. Chapter 8 Graphs of Trigonometric Functions

  2. Using Quadrants to measure angles

  3. The SIN graph – learn its properties y = sinx

  4. The COS graph – learn its properties y = cosx

  5. The TAN graph – learn its properties y = tanx

  6. Which quadrants are positive for Sin x, Cos x and Tan x?

  7. Express as trig ratios of acute angles • Sin (-100°) • Cos 330° • Tan 500°

  8. Express as trig ratios of acute angles

  9. Special angles: 60°, 30°, 45°Finding exact trig ratios involving these values

  10. Learn these trig ratios

  11. Exact values of trig ratios – using your knowledge • Ex 8D Q1 a – e. Homework • Express the following as trig ratios of either 30°, 45° or 60°, • and hence find their exact values. • Sin 135° • Sin (-60°) • Sin 330° • Sin 420°

  12. Transformations of trig graphs Remember the transformation rules from C1!!

  13. Examples – have a go at these Now do Ex 8G Q5

  14. Ex 8G Q5

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