1. sin x cos x tan x 360o 90o 180o 270o 360o 360o 180o 90o C A S T 0o
Rearrange into sin =
Find solution in the Quads C A S T 0o
180o
270o
90o
Basic Strategy for Solving
Trig Equations
180o - xo xo
180o + xo
360o + xo
Trig Functions and Solving Trig Equations
360o 1 -1
Amplitude
Complex Graph 2 -1 1
90o
180o
270o
360o 3
Period
sin x
Basic Graphs
Amplitude 1 -1
360o
Amplitude 1 -1
180o
90o
Period
Period
y = 2sin4x + 1
Period
cos x
Max. Value = = 3
Period = 360 ÷ 4 = 90o
tan x
Mini. Value = = -1
Amplitude = 2