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(2 marks) A7. If y = (sin .x)", find A: .r (sin.r) B: In (sin.r) + .r cotr C: er In(sina) D: (sin.r)" (In (sin.) +.rcot.c) E: (sin ) (Sing " + cox e lur)
2 A7. Find the exact value of cos(2 sin ()). marks Let ya simY3 Then siny=% and cos2y = 1.25iny Y2 =y=72 = 1- =%
