To solve: The given system of linear equations using the matrix capabilities of a graphing utility.
Answer to Problem 43E
The solution of the system of linear equation is
Explanation of Solution
Given information :
The system of linear equations:
The inverse matrix: (as obtained in EX 28)
Formula used:
To solve a system of linear equations:
If
Calculation :
As per problem,
The given system of linear equations:
Write the system in matrix form,
To obtain,
Find the product of the given inverse matrix (
The solution of the system of linear equation using graphing utility is obtained as:
Enter the first matrix by using the combination of keystrokes
Use cursor key to select the edit option and then select row 1 of matrix A and press
- Enter the dimension of the matrix A (4 rows by 4 columns).
- Enter the values of the matrix A (row by row).
- Enter the dimension of the matrix B (4 rows by 1 column).
- Enter the values of the matrix B (row by row).
- and stay at the NAMES menu Press
Enter the second matrix by using the combination of keystrokes
Use cursor key to select the edit option and press [2] or highlight 2. [B] and press
Press
Press
Press [2] or highlight 2. [B] and press
Press
The resultant matrix is displayed as:
The corresponding system is,
Hence,
The solution of the system of linear equation is
Chapter 7 Solutions
Precalculus with Limits: A Graphing Approach
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