Warm-up: (put at top of today’s assignment p.336)

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Presentation transcript:

Warm-up: (put at top of today’s assignment p.336) A. Draw this unit circle and label the coordinates of the given points.

Warm-up: sinθ = cscθ = cosθ = secθ = tanθ = cotθ = B. Give a “definition” for each of the following in terms of x, y, and r: sinθ = cscθ = cosθ = secθ = tanθ = cotθ =

Warm-up: C. Use your unit circle and definitions to evaluate the following expressions: sin 180° = tan 90° = cot 270° = sec 360° =

SOLUTIONS TO WARM-UP A. Draw this unit circle and label the coordinates of the given points.

SOLUTIONS TO WARM-UP B. Give a “definition” for each of the following in terms of x, y, and r: sinθ = cscθ = cosθ = secθ = tanθ = cotθ =

SOLUTIONS TO WARM-UP C. Use your unit circle and definitions to evaluate the following expressions: sin 180° = tan 90° = cot 270° = sec 360° =

Ch.5 Group Quiz Tuesday Ways to study: Read through your ch.5 notes (targeting items on your study list) Complete the chapter review on p.336-338 and rework some of the problems from past assignments

Formulas to know for the quiz!!! y x r (x, y) Also know reciprocal trig functions! 9

45° 60° 45° 30° --------------------------------------------------------------------------------------------------------------------- radius 45° 60° 30° 45° 10

works for any type of triangle. Law of Sines: works for any type of triangle. 11

↓This side is across from this angle ↓ Law of Cosines: ↓This side is across from this angle ↓ a2 = b2 + c2 – 2bc(cosA) b2 = a2 + c2 – 2ac(cosB) c2 = a2 + b2 – 2ab(cosC)

Finding the area of a triangle when the base and height are not given: 13

Formulas to know for the quiz!!!