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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