
Find the product of given matrices using matrix capabilities of a graphing utility.

Answer to Problem 65RE
There is no solution.
Explanation of Solution
Given information:
The given expression is
[12−104−2113][1−12] .
Calculation:
If A=[aij] is an m×n matrix and B=[bij] is an n×p matrix, then the product AB is an m×p matrix AB=[cij] , Where cij = ai1b1j+ai2b2j+ai3b3j+−−−+ainbnj cij .
Use graphing calculator.
Take a matrix A with order 3×3 and the other matrix B inorder 1×1 .
A=[]B=[]
Insert the given values of 3×3 matrix in A and 1×1 matrix in B .
A=[12−104−2113]B=[1−12]
Now find the product of AB .
AB=[12−104−2113][1−12]
Calculator display the message, the number of columns in the first matrix should be equal to the number of rows in the second.
Hence there is no solution.
Chapter 8 Solutions
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