A non homogeneous system is three equati...

A non homogeneous system is three equations in 3 unknowns Ax = D has a unique solution. If
a)Rank of (A) = Rank of (AD) = 3
b)Rank of (A)`!=` Rank of (AD)
c)Rank of (A) = Rank of (AD) = 2
d)Rank of (A) is one

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