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5-5 Solving Right Triangles

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

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  1. 5-5 Solving Right Triangles

  2. Find Sin Ѳ = 0

  3. Find Cos Ѳ = .7

  4. 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= cosx • y= tan x

  5. 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.

  6. 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.

  7. Finding inverses using the graphing calculator

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

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

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

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

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

  13. c=6.92

  14. a=23, c=45 • Find b • Find A • Find B • B • c a • A b C

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