SOLUTION: Which of the following expressions represents the correct expansion of the y determinant for the equations:
x+y=0
x+z=4
y+z=0
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-> SOLUTION: Which of the following expressions represents the correct expansion of the y determinant for the equations:
x+y=0
x+z=4
y+z=0
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Question 937276: Which of the following expressions represents the correct expansion of the y determinant for the equations:
x+y=0
x+z=4
y+z=0 Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! x+y=0
x+z=4
y+z=0
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put the system of linear equations into standard form
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x+y=0
x+z=4
y+z=0
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https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = 2
y = -2
z = 2
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system matrix
1 1 0
1 0 1
0 1 1
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inverse of system matrix
0.5 0.5 -0.5
0.5 -0.5 0.5
-0.5 0.5 0.5
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determinant of system matrix = -2
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