5.4 Sum and Difference Identities

# 5.4 Sum and Difference Identities - 5.4 Sum and Difference...

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Unformatted text preview: 5.4 Sum and Difference Identities Quiz on Friday. 4 questions. 2 questions on identities, and 2 questions on solving trig equations. Tuesday, September 27, 2011 5:24 AM Agenda: 1. Whiteboard Warmup 2. A word about late work 2. Lesson: 5.4 Sum and Difference Identities ________________________ Whiteboard Warmup Lets say that for some problem, you found the form for the general solutions to be . What are the solutions on the interval ? Hint. Substitute values of for n until the output is outside of the interval. ________________________ Late work • I will collect late work, but rather than the one random assignment that I collect for the week, I will expect to see all assignments for that week done, with each assignment of quality that would have earned a minimum score of a 4 if it was turned in on time. Late work will earn a maximum score of 2 out of 4 (70%). • If you are absent, please turn in the collected assignment on the day you come back. ________________________ Lesson: 5.4 Sum and Difference Identities Goal: Use sum and difference identities to simplify trigonometric expressions DOD Sum and Difference Identities Ch_5 Page 1 DOD Sum and Difference Identities ________________________ Examples Find the exact value. (use the fact that ) (use the fact that ) Use the sum and difference identities to write the expression as the sine, cosine, or tangent of an angle. Ch_5 Page 2 Verify the identity Ch_5 Page 3 ...
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## This note was uploaded on 11/19/2011 for the course MATH 180 taught by Professor Byrns during the Spring '11 term at Montgomery College.

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