Linear Algebra GATE 2005 Question #8392 with Solution

GATE 2005

Engineering MathematicsLinear AlgebraeasyMCQ1 mark

A system of linear equations Ax = b has a unique solution if and only if:

ARank(A) = Rank([A|b]) = number of variablesBRank(A) < Rank([A|b])CRank(A) < number of variablesDdet(A) = 0

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