Unformatted text preview: 73.notebook November 18, 2010 73 Sine (sin θ) and Cosine (cos θ) Functions.
P(x,y) Given a unit circle: x2 + y2 = r2 sin θ = y/r cos θ = x/r r θ Mar 78:02 AM Ex. If the terminal ray of an angle θ in standard position passes through (3, 2), find sin θ and cos θ. Ex. If θ is a fourth quadrant angle and sin θ = 5/13, find cos θ. Mar 78:12 AM 1 73.notebook November 18, 2010 sin θ + cos θ sin θ + cos θ + sin θ cos θ sin θ cos θ + p.271 16 p.273 2128
Mar 78:16 AM unit circle x2 + y2 = 1 (0,1)
cos θ = x sin θ = y
Mar 78:21 AM
. 2 73.notebook November 18, 2010 Evaluate the following: sin 900 sin 4500 cos (π) cos (π/2) sin (3π/2) cos 8100 Mar 78:27 AM Solve the following: sin θ = 1 cos θ = 0 sin θ = 1 cos θ = 1 p. 272 120 Mar 78:30 AM 3 ...
View Full Document
This note was uploaded on 04/22/2011 for the course MATH 212 taught by Professor Owens during the Winter '07 term at Grand Valley State.
- Winter '07