1. Compute u + v and u-2v where u = 2 -5 and v= 1 2

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter3: Determinants
Section3.CM: Cumulative Review
Problem 9CM: Solve for x and y in the matrix equation 2AB=I, given A=[1123] and B=[x2y5].
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1. Compute u + v and u
2v where u =
and v=
2. Use the equation
0
2
3
3
X1 0 + x2
-7
−3+x3|2| +49
0
3
2
-3
for the following problems.
(a) Write a system of equations that is equivalent to the given vector equation.
(b) Use the definition of Ax to write the vector equation as a matrix equation.
-5
1
2
=
Transcribed Image Text:2 1. Compute u + v and u 2v where u = and v= 2. Use the equation 0 2 3 3 X1 0 + x2 -7 −3+x3|2| +49 0 3 2 -3 for the following problems. (a) Write a system of equations that is equivalent to the given vector equation. (b) Use the definition of Ax to write the vector equation as a matrix equation. -5 1 2 =
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