Graphs of Trigonometric Functions

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Presentation transcript:

Graphs of Trigonometric Functions 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?

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

Express as trig ratios of acute angles

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

Learn these trig ratios

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°

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

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

Ex 8G Q5