2 3 A14 TRIG EQUATIONS & IDENTITIES A14 TRIG EQUATIONS & IDENTITIES !) For the following identity: 5) Prove the following identity: (5 marks) cos x - cot x_ 1 - sin x - = - cotx cos x Cos X 2 sec x = 1 1 - sin x 1 + sin x a) Verify that the statement is true for x = . (5 marks) 6) Prove the following identity: (5 marks) b) Prove the statement is true for all x values, and determine any restrictions on x. (5 marks) a) sin (x + ") = cos(x - It)