Lesson ObjectiveBe able to use the compound angle formula to solve equations involving sin and cosExtend to using them compound angle formula to find maximas and minimas

1) Consider 5cos x + 12sin x

Write this expression in the form Rcos(x – α)

2) Consider 3sin x + 4cos x

Write this expression in the form Rsin(x + α)

1)

2)

3)

4)

5)

2)

2)

5)