To reduce: the augmented matrix corresponding to the system of equations and solve the system by using matrix capabilities of a graphing utility.
Answer to Problem 100RE
The matrix capabilities of a graphing utility, the solution of the system (B) is:
Explanation of Solution
Given information:
Given system of equations
Calculation:
The augmented matrix corresponding to this system of linear equation is
Now, using the matrix capabilities of graphing utility, we can reduce augmented matrix of
Press
Enter elements of the matrices. Clear it.Again press 2nd, matrix keys. Select math key and A:ref(
Finally select names and then press enter key
1, 2, 3 columns are shown below:
3, 4, 5 columns are shown below:
Now we write down corresponding triangular system
Again, using the matrix capabilities of a graphing utility, the solution of the system (B) is:
Chapter 7 Solutions
Precalculus with Limits: A Graphing Approach
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