Multiple Choice Questions on If r A r A B r lt n then system of linear equation has ........ for NDA Exam Preparation

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Multiple Choice Questions

If r A r A B r lt n then system of linear equation has ........

Mathematics (NDA) Matrices and Determinants
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    If , r(A)=r(A|B)=r

    consistent and infinite solution

    Correct Answer

    unique solution

    Incorrect Answer

    two solution

    Incorrect Answer

    no solution

    Incorrect Answer
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    Explanation:

    Rank of A = rank (A|B)

    n is the number of unknown variables

    since ,r

    hence an infinite and consistent solution

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