Unit 3 Assessment 9. Prove the following identity. Explain your thought process. [T3] [C2] cot(x )2 = cosx2 Start working on the left hand side 1-cos x cosx2 cost Expanded the left side 1-cos x2 1-cos x2 Since the left side is equal to the right the solution is true show the equivalences to convert the LS 3