Q11 of 26 Page 1

Let, then compute AB. Hence, solve the following system of equations: 2x + y = 4, 3x + 2y = 1.

Given Data:


Matrices,


System of Equations: 2x + y = 4, 3x + 2y = 1


Calculation:



The std. system of equation is A’X = C


Therefore X = (A’)–1C = (A–1)’C


Here and


Now find A–1


AB=2I


Multiplying both sides by A–1


A–1AB=2A–1



Using X = (A’)–1C = (A–1)’C




Therefore x = 7 and y =–10.


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