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GBK Precalculus Jordan Johnson

GBK Precalculus Jordan Johnson. Today’s agenda. Greetings Review / Submit HW (Section 5-2): Reading Analysis questions Exercises Q1-Q10. Problems 1-15 odd, 16, and 17. NaQ Deriving the Composite Argument Formulas Classwork Homework Clean-up. Quizlet. y = 15 cos  - 8 sin 

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GBK Precalculus Jordan Johnson

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  1. GBK PrecalculusJordan Johnson

  2. Today’s agenda • Greetings • Review / Submit HW (Section 5-2): • Reading Analysis questions • Exercises Q1-Q10. • Problems 1-15 odd, 16, and 17. • NaQ • Deriving the Composite Argument Formulas • Classwork • Homework • Clean-up

  3. Quizlet y = 15 cos  - 8 sin  • Express the above as an equation of the formy = A cos( – D) • Diagram the angle D in standard position on a uv-coordinate plane. • Compute approximate decimal values of A and D, showing your steps. • Write the resulting equation.

  4. Solution D = arctan(-8/15) in quadrant IV. tan-1(-8/15)  -0.48996 A = 17 y = 17 cos(x + 0.48996)

  5. Deriving theComposite Argument Formula • Demo in GeoGebra. • Derivation as classwork.

  6. Homework • Due Wednesday 2/2, from Section 5-2: • Problems 19-27 odd, 29, 30, 33 • Bonus: 28, 31, 32.

  7. Clean-up / Reminders • Pick up all trash / items. • Push in chairs (at front and side tables). • See you tomorrow!

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