unit 7 chapter 5

Simplifying trig identities: http://www.youtube.com/watch?v=zJ2v1Q-Y6lk

Verifying trig identities: http://www.youtube.com/watch?v=3r9tSw3G6fc

part 1 Solving trig equations: https://www.youtube.com/watch?v=yCjazfH0C1Y

part 2 Solving trig equations: http://www.youtube.com/watch?v=BxZEu_WhHsk

part 3 Solving trig equations: https://www.youtube.com/watch?v=8du-AdgFA90

part 1 Sum and difference identities: http://www.youtube.com/watch?v=GgWBjv5Nhhk

part 2 Sum and difference identities: http://www.youtube.com/watch?v=EXzLq6a59Bs

part 1 Other trig identities: https://www.youtube.com/watch?v=YmS8Kwkql4E

part 2 Other trig identities: http://www.youtube.com/watch?v=FAllW809HJo