onometric Identities Prove the given identity. sec x csc x- sin x sec x= cos x csc x This quiz: 25 poi < Question 6 of 10 This question: 3 Choose the correct proof below. OA. sec xcsc x - sin x sec x 11 cos x sin x 1- sin x sin x cos x cos 2 x sin x cos x = cos xcsc x - sin x.. C. sec xcsc x- sin x sec x 1 1 . cos x sin x 1- sin x sin x cos x 2 cos x sin x cos x = cos xcsc x 1 cos x OB. sec xcsc x- sin xsec x 11 cos x sin x sin x cos x 2 1- sin x sin x cos x cos x 2 = cos xcsc x sin x- OD. sec xcsc x- sin xsec x 1 1 cos x sin x sin x cos x 1-sin 2 x sin x cos x cos2x = cos xcsc x COS