Question

1. determine if 70° and 430° are coterminal.

Explanation:

Step1: Subtract the two angles

$$430^{\circ}-70^{\circ}=360^{\circ}$$

Step2: Check if the difference is a multiple of \(360^{\circ}\)

Since \(360^{\circ}=1\times360^{\circ}\), the difference is a multiple of \(360^{\circ}\).

Answer:

Yes, \(70^{\circ}\) and \(430^{\circ}\) are coterminal.