Section 7 4 Trigonometric Identities Copyright 2013 Pearson
- Slides: 16
Section 7. 4 Trigonometric Identities Copyright © 2013 Pearson Education, Inc. All rights reserved
Objectives • Use algebra to simplify trigonometric expressions. • Establish identities. Copyright © 2013 Pearson Education, Inc. All rights reserved
Copyright © 2013 Pearson Education, Inc. All rights reserved
Copyright © 2013 Pearson Education, Inc. All rights reserved
Copyright © 2013 Pearson Education, Inc. All rights reserved
Copyright © 2013 Pearson Education, Inc. All rights reserved
Copyright © 2013 Pearson Education, Inc. All rights reserved
“Establish” or “verify” the identity suggestions: • Transform the more complicated side of the equation to the simpler side. • Substitute one or more basic trig identities to simplify expressions. • Factor or multiply out to simplify expressions. • Multiply expressions by an expression equal to 1. • Express all trig functions in terms of sine and cosine. (You can NOT add, subtract, multiply or divide both sides!!!) Copyright © 2013 Pearson Education, Inc. All rights reserved
Copyright © 2013 Pearson Education, Inc. All rights reserved
Copyright © 2013 Pearson Education, Inc. All rights reserved
Copyright © 2013 Pearson Education, Inc. All rights reserved
Copyright © 2013 Pearson Education, Inc. All rights reserved
Copyright © 2013 Pearson Education, Inc. All rights reserved
Copyright © 2013 Pearson Education, Inc. All rights reserved
Copyright © 2013 Pearson Education, Inc. All rights reserved
Homework: 7. 4 #19 -37 odd Copyright © 2013 Pearson Education, Inc. All rights reserved