sulpcegu5e ppt 11_2
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Section 11.2
Systems of Linear Equations: Matrices
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OBJECTIVE 1
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Write the augmented matrix of each system of equations.
3 2 3(a)
2 2
3 2 5 0(b) 2 4 2 0
4 7 0
x yx y
x yx zx y z
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OBJECTIVE 2
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Write the system of linear equations corresponding to each augmented matrix.
3 2 5 32 1 3
a b 2 1 4 21 1 2
1 4 7 1
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OBJECTIVE 3
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2 1 2Apply the row operation 2 to the augmented matrix
1 3 4
2 5 3
R r r
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Find a row operation that will result in the augmented matrix
1 3 4
0 1 5
having a 0 in row 1, column 2.
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OBJECTIVE 4
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1
Solve: 4 3 2 16
2 2 3 5
x y z
x y z
x y z
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0
Solve: 2 3 19
4 3 4 28
x y z
x y z
x y z
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3 2 6
Solve: 2 3 10
8 3 28
x y z
x y z
x y z
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3 4 8 4
Solve: 9 13 49 0
3 3 9 1
x y z
x y z
x y z
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