Find the exact value of each of the following under the given conditions. a. cos (a + B) b. sin (a+) c. tan (a+B) 1 tan = 3 < < and cos = 2' 3 3 5'2 board s ll Trigonometry (Section 37723) E Course Home mylab.pearson.com P Do Homework - Addition and Sub Question 12, 6.2.63 ition and Subtraction Formulas K View an example 9 parts remaining Find the exact value of each of the following under the given conditions. a. cos (a + ) b. sin ( + ) c. tan (a + ) 3 tan = -, -, a. To find cos (a + B), use the formula for the sum of cosines. cos (a + B)= cos a cos - sin a sin Print View an example Get more help a # $ 2 N 3 4 % olo LO 5 MacBook Q W E R T