1.

If A=⎡⎢⎣111102311⎤⎥⎦,find A−1. Hence, solve the system of equations x+y+z=6,x+2z=7,3x+y+z=12.

Answer» If A=111102311,find A1. Hence, solve the system of equations
x+y+z=6,x+2z=7,3x+y+z=12.



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