Concept explainers
To Find: The solution for the given system of equations.
Answer to Problem 4.6.9EP
The inverse of the coefficient matrix is
Explanation of Solution
Given:
The given system of equations is,
Calculation:
Consider the matrix of the given equation is,
Then, the inverse of the coefficient matrix is obtained as,
Consider the ad joint of the matrix and the minor is,
Consider the value of
Solve for
Solve for value of
Solve for
Solve for value of
Solving in the same manner the ad joint of the coefficient matrix is,
The determinant of the coefficient matrix is,
The inverse of the coefficient matrix is,
Multiply the side of the matrix equation by the inverse of the coefficient matrix is,
The inverse of the coefficient matrix is
Chapter EP Solutions
Algebra 2
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