Examples of Simplifying trigonometric Expressions
1:05 example
#1



#2

3:22 example - Uses the PT trig. identities



#3
3:29 example - More PT trig. identities


#4
3:47 example - writing everything in terms of sine and cosine


#5
8:04 example - common denominator for adding fractions and PT trig identity transformation


#6
2:44 example - Simpler PT trig identity example




Quick graphs of the 6 trigonometry functions