Prove the cofunction identity using the Addition and

Last updated: 10/17/2023

Prove the cofunction identity using the Addition and Subtraction Formulas tan u cot u Since tan is undefined use a Reciprocal Identity and then use the Substitution Formulas to sim tan 7 u 11 sin COS EN cos u cos sin u cos cos u sin sin u sin u cos u o sin u 0 cos u 1 sin u