MAC1147 Lecture 8: 7.2 Identities: Cofunction, Double-Angle, and Half Angle Notes

• School: Miami Dade College
• Department: Mathematics: Calculus & Pre-Calculus
• Course: MAC1147
• Professor: Kos

Document Summary

Provide a generalization to each of the key terms listed in this section. 1 csc cos = sin(cid:16) . 1 sec tan = sin cos . 1 cot csc = sec(cid:16) . 1 sin sec = csc(cid:16) . 1 cos cot = cos sin . Secant sin (2 ) = 2 sin cos cos (2 ) = cos2 sin2 cos (2 ) = 2 cos2 1 cos (2 ) = 1 2sin2 tan (2 ) = 2 sin cos sec (2 ) = 1 cos2 sin2 sec (2 ) = sec (2 ) = Cosine sinh (2 ) = 2 sinh cosh cosh (2 ) = cos2 sin2 cosh (2 ) = 2 cosh2 1 cosh (2 ) = 1 2sinh2 . 2 sinh cosh sech (2 ) = 1 cosh2 sinh2 sech (2 ) = sech (2 ) =