Write these definitions using the classify and differentiate method to fill in the blanks: a. An acute angle is __________ that ___________. b. Complementary angles are __________ that ___________. c. A midpoint is __________ that ___________. d. A protractor is __________ that ___________

Trigonometry Section 2.4 and 2.5 Cos(a-b) = cosacosb + sinasinb Cos(a+b) = cosacosb – sinasinb Sin(a-b) = sinacosb - cosasinb Sin(a+b) = sinacosb + cosasinb tana−tanb Tan(a-b) =1+tanatanb tana+tanb Tan(a+b) = 1−tanatanb Here is an example problem: 7π 7π...