1. Applications of Matrices
Section 6.6
Applications of Matrices
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6. Use the inverse of the coefficient matrix to solve the system
Example:
Use the inverse of the coefficient matrix to solve the system
Solution:
The coefficient matrix is A graphing calculator will indicate that does not exist. If we carry out the row operations, we see why:
The next step cannot be performed because of the zero in the second row, second column.
Therefore, the inverse does not exist, and the system has no solutions.
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