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5-5 Solving Right Triangles. Find Sin Ѳ = 0 Find Cos Ѳ =.7.

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Presentation on theme: "5-5 Solving Right Triangles. Find Sin Ѳ = 0 Find Cos Ѳ =.7."— Presentation transcript:

1 5-5 Solving Right Triangles

2 Find Sin Ѳ = 0

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4 Find Cos Ѳ =.7

5 Inverses of Trigonometric Functions Arccosine relation – the inverse of y= cos x Arcsine relation – the inverse of y= sin x Arctangent relation – the inverse of y= tan x y= sin x y= cos x y= tan x

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12 Solve each equation using chart tan x = 1 45°, 225°, or any angles coterminal with these angles. sin x = -1/2 210°, 330°, or any angles coterminal with these angles.

13 Solve each equation using graphing calculator tan x = 1 45°, 225°, or any angles coterminal with these angles. sin x = -1/2 210°, 330°, or any angles coterminal with these angles.

14 Finding inverses using the graphing calculator

15 Evaluate each expression. Assume that all angles are in Quadrant 1.

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17 Evaluate each expression. Assume that all angles are in Quadrant I 3/4 2/5

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20 If f=17 and d=32, find E. F d e E f D

21 If g=28 and h=21, find H. H f g G h F About 48.6⁰

22 Solve the triangles described, given the following triangle. B c a A b C A = 33⁰, b=5.8 Find B Find a Find c

23 c=6.92

24 a=23, c=45 Find b Find A Find B B c a A b C

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