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
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836-8
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836-10
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836-12
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836-18
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836-20

836-24
a and b are orthogonal
836-26
a and b are orthogonal