Let A -1 = is the inverse of the matrix : A = solve the system : a11 X + a...
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Let A-1 = is the inverse of the matrix : A =
solve the system :
a11 X + a12 Y + a13 Z + a14 W =4
a21 X + a22 Y + a23 Z + a24 W =5
a31 X + a32 Y + a33 Z + a34 W =8
a41 X + a42 Y + a43 Z + a44 W =7
find X
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