Determine the principal value for each trigonometric expression in the chart below. Express each as an exact value in degrees. Which column contains the larger value? Column I or Column II?

Icould really use some with this question.

Find two consexutive odd integers such that the sum of their square is 650

Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?