Reflection: Complex Tasks Using Formulas to Solve Trig Equations - Section 1: Launch and Explore


The biggest struggle in finding the correct answers to these trig equations is always considering the period. One thing I tried really hard to stress was that we always start with the period of the original function we are working with (e.g. if we have a cosine equation we consider the period of the cosine function). After we set up a solution like 2x = 45° + 360°, then we divide by 2 to get the period of the transformed function. It seemed easier to talk about it in this algebraic way and then to make the connection to the period of the transformed function. 

  Finding the Period of the Solutions
  Complex Tasks: Finding the Period of the Solutions
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Using Formulas to Solve Trig Equations

Unit 5: Trigonometric Relationships
Lesson 10 of 15

Objective: SWBAT solve trig equations that must be simplified using trig identities.

Big Idea: The trig equations are getting more complex, how can we simplify them before solving?

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Math, Precalculus and Calculus, Trigonometry, trigonometric functions (Simplifying), Trigonometric Equations, trigonemetric identities
  50 minutes
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