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GBK Precalculus Jordan Johnson

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# GBK Precalculus Jordan Johnson - PowerPoint PPT Presentation

GBK Precalculus Jordan Johnson. Today’s agenda. Greetings Review / Submit HW from Section 5-2: Problems 19-27 odd, 29, 30, 33 Bonus : 28, 31, 32. Composite Argument Formula work Complete &amp; Review Lesson: Other Composite Argument Forms Note: Quiz Monday. Clean-up.

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### GBK PrecalculusJordan Johnson

Today’s agenda
• Greetings
• Review / Submit HW from Section 5-2:
• Problems 19-27 odd, 29, 30, 33
• Bonus: 28, 31, 32.
• Composite Argument Formula work
• Complete & Review
• Lesson: Other Composite Argument Forms
• Note: Quiz Monday.
• Clean-up
Deriving theComposite Argument Formula
• Finish the composite argument formula work.
Clean-up / Reminders
• Pick up all trash / items.
• Push in chairs (at front and side tables).
• See you tomorrow!
Even/odd functions, revisited
• In other words:
• cosine must be even
• sine must be odd
• Recall the definitions:
• An even function f(x) obeys f(-x) = f(x).
• An odd function f(x) obeys f(-x) = -f(x).
• If (u, v) is the end of an arc of length x in standard position on the unit circle, then:
• cos x = u
• sin x = v
• Demo in GeoGebra.