Homework
Page 828 Problems 5, 6, 15, 16,20, 21, 25, 26
Page 836 Problems 2, 5, 8, 10, 11, 12, 18,20, 24, 26

828-20

|a| = 26, a + b = <3, -2, -4>, a-b = <-9, -6, 2>
2a = <-6, -8, -2>, 3a+4b = <15, -4, -15>

828-26

836-2

836-8

836-10

836-12

836-18

836-20

836-24

a and b are orthogonal

836-26

a and b are orthogonal