Q21

Verify the following derivative formula using the Quotient Rule. ( cscx) = - csc x cotx Choose the correct sequence of steps below that verifies the given derivative formula. O A. OB. ( CSC X) = dx sin x dy (csc X) = dx sin x cos x(0) - (1) sin x sin x(0) - (1) cos x cos x sin x = - csc x cot x = - csc x cot x