1.

If A=[{:(2,5,3),(3,4,-2),(4,-6,-2):}], find A^(-1) . Hence solve the system of equations 2/x+3/y+4/z =-3, 5/x+4/y-6/z=4, 3/x-2/y-2/z=6

Answer»


ANSWER :`A^(-1)=1/152[{:(20,8,22),(2,16,-13),(34,-32,7):}]` , x=1 , y=-1 , z=-2


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