Verify the following derivative formula using the Quotient Rule. (cotx) = - csc 2x Choose the correct sequence of steps below that verifies the given derivative formula. O A. O B. O COS X dy (cotx) = COS X dx sin x dy ( cotx) = dx |sin x sin x( - sin x) - cos x Cos x cos x( - cos x) - sin x sin x 11 sin x cos x = - CSC x = - csc 2x