
Concept explainers
a.
By using MATLAB to find
a.

Answer to Problem C.27E
Explanation of Solution
Given Information:
MATLAB commands:
A = [-7 16;4 9]
B = [6 -5;12 -2]
C = [-3 -9;6 8]
A + B + C
MATLAB window below
Conclusion:
b.
By using MATLAB to find
b.

Answer to Problem C.27E
Explanation of Solution
Given Information:
MATLAB commands:
A = [-7 16;4 9]
B = [6 -5;12 -2]
C = [-3 -9;6 8]
A - B + C
MATLAB window below
Conclusion:
c.
By using MATLAB to verify the associative law
c.

Answer to Problem C.27E
Hence,
Explanation of Solution
Given Information:
MATLAB commands:
A = [-7 16;4 9]
B = [6 -5;12 -2]
C = [-3 -9;6 8]
(A + B)+ C
A + (B + C)
MATLAB window below
Conclusion:
Hence,
d.
By using MATLAB to verify the commutative law
d.

Answer to Problem C.27E
Hence,
Explanation of Solution
Given Information:
MATLAB commands:
A = [-7 16;4 9]
B = [6 -5;12 -2]
C = [-3 -9;6 8]
A + B + C
A + C + B
B + C + A
MATLAB window below
Conclusion:
Hence,
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