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 Welcome Back 

 Welcome Back . Lesson Plan. EQ: How do we solve for a missing piece of the trig puzzle? Agenda: Warm Up Partner Worksheet Notes on Solving Trig Equations Homework: Worksheet on Inverse Trig Equations. Warm Up. What are the 6 trig functions and their ratios?

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 Welcome Back 

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  1.  Welcome Back 

  2. Lesson Plan EQ: How do we solve for a missing piece of the trig puzzle? Agenda: • Warm Up • Partner Worksheet • Notes on Solving Trig Equations Homework: • Worksheet on Inverse Trig Equations

  3. Warm Up What are the 6 trig functions and their ratios? sine, cosine, tangent, cosecant, secant, cotangent sinθ= opp/hyp cosθ = adj/hyp tanθ = opp/adj cscθ = hyp/opp secθ = hyp/adj cotθ = adj/opp

  4. Partner Worksheet • Everyone gets the same worksheet • Partner 1 odds, Partner 2 evens • Complete your half and check with key • Ask me/your neighbors if you don’t understand some of them • You’re now the Master of those problems • Complete the other half of the worksheet • Meet with your partner, check each other’s answers and work together to help your partner Master all problems

  5. Let’s review the pieces… • Opposite, adjacent and hypotenuse all refer to what? • θ, β, α, A, B, X, and Y all refer to what? • To sum it up:

  6. Setting Up Trig Equations What if we do know the measure of one of the acute angles but are missing a side? • Which trig function would we use here? • What would the equation look like? x 45° 4 cm

  7. Setting Up Trig Equations • Which trig function would we use here? • What would the equation look like? 12 ft x 30°

  8. Solving Trig Equations

  9. What if it looks like this…

  10. What if we are are trying to solve for the angle? Which Trig function should we use? β 40 m 20 m

  11. Practice

  12. T.O.D. Finish #’s 1, 9, 17 and have me check them before you leave.

  13. hundredth.

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