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Math · Trigonometry
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Verify the identity 2 csc x-csc x cos x = sin x Choose the sequence of steps below that verifies the identity. OA OB. OC. O D. cscx- cscx cos2x-1- cos2x- sinx csc x-csc x cos 2x = csc x (1-cos 2x): csc x-csc x cos 2xz csc x (cos 2x-1) = csc x-csc x cos 2 x = csc x (1-cos 2x) = sin 2x sin x sin x . sin x2= sin x sinx -sin x = sin x sinx
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