If a linear system in 5 variables has no solution, the rank of the coefficient matrix must be less than 5. O True False A homogeneous system of linear equations in 8 variables has a unique solution if the rank of the coefficient matrix is 8. True False If the row-reduced echelon form of the augmented matrix for a system of linear equations has 2 rows of zeros, then it has infinitely many solutions. O True False

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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If a linear system in 5 variables has no solution, the rank of the coefficient matrix must
be less than 5.
O True
False
A homogeneous system of linear equations in 8 variables has a unique solution if the
rank of the coefficient matrix is 8.
O True
False
If the row-reduced echelon form of the augmented matrix for a system of linear
equations has 2 rows of zeros, then it has infinitely many solutions.
O True
False
If the row-reduced echelon form of the augmented matrix for a system of 7 linear
equations in 7 unknowns has 7 leading variables, then the system has a unique solution.
O True
O False
Transcribed Image Text:If a linear system in 5 variables has no solution, the rank of the coefficient matrix must be less than 5. O True False A homogeneous system of linear equations in 8 variables has a unique solution if the rank of the coefficient matrix is 8. O True False If the row-reduced echelon form of the augmented matrix for a system of linear equations has 2 rows of zeros, then it has infinitely many solutions. O True False If the row-reduced echelon form of the augmented matrix for a system of 7 linear equations in 7 unknowns has 7 leading variables, then the system has a unique solution. O True O False
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