2 - Find: (a) 3a ,(b) a +b , (c) a-b , (d) la + b|, (e) a- b|, (f) 3a – 4b and (g) | 5a + 2b|. If 1. a = 2i + 4i, b = -i+ 4i 5 a = -3i + 2j, b

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter2: Equations And Inequalities
Section2.1: Equations
Problem 53E
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2 – Find: (a) 3a ,(b) a + b, (c) a-b, (d) la + b|, (e) a- b|,
(f) 3a – 4b and (g) | 5a + 2b|. If
1. a = 2i + 4j, b = -i+ 4j
2 a = (1, 1), b = (2, 3)
3 a = (4,0), b (0,-5)
4 a= i-dj, b = }i+ j
5. a = -3i + 2j, b= 7j
6 a = (1, 3), b = - Sa
7. a = -b, b = 2i – 9j
8. a = (7, 10), b = (1,2)
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Transcribed Image Text:2 – Find: (a) 3a ,(b) a + b, (c) a-b, (d) la + b|, (e) a- b|, (f) 3a – 4b and (g) | 5a + 2b|. If 1. a = 2i + 4j, b = -i+ 4j 2 a = (1, 1), b = (2, 3) 3 a = (4,0), b (0,-5) 4 a= i-dj, b = }i+ j 5. a = -3i + 2j, b= 7j 6 a = (1, 3), b = - Sa 7. a = -b, b = 2i – 9j 8. a = (7, 10), b = (1,2) %3D %3D %3! %3D %3D
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