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 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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lesson plan
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
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

partner worksheet
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
let s review the pieces
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:
setting up trig equations
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

setting up trig equations1
Setting Up Trig Equations
  • Which trig function would we use here?
  • What would the equation look like?

12 ft

x

30°

what if we are are trying to solve for the angle
What if we are are trying to solve for the angle?

Which Trig function should we use?

β

40 m

20 m

t o d
T.O.D.

Finish #’s 1, 9, 17 and have me check them before you leave.