Verify the identity. cot tcsc t= 2 csct-1 cos t Which of the following three statements establishes the identity? OA. cot tcsc t= cot t OB. cot tcsc t = cot t OC. cot tcsc t = cot cot t cos t tan t sec t COS cot t = = csc ² t-1 cos t csc ² t-1 2 cos t csc ² t-1 cos t

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