Hello! I would like some help/explanation on these question. I would greatly appreciate it, thank you!

1. Determine the primary solutions of the equation : sin 0 - (sin 0)3 = 0 Use the unit circle, and give exact answers in radians. 2. Use trigonometric identities to verify/prove the identity : cos B - sec B = - sin B . tan BUse the diagram shown for problems #3 and #4 : 6 Label all values computed in #3 and #4 on the diagram. [7 21 3. (a) Compute and label the missing angle. (b) Use the Law of Sines to compute the length of the unlabeled side. 4. Use the Law of Cosines to determine the length of the side labeled \"p\