Linear Algebra

In the matrix equation Px = q. which of the following is a necessary condition for the existence of at least one solution for the unknown vector x?

A.	Augmented matrix [Pq] must have the same rank as matrix P
B.	Vector q must have only non-zero elements
C.	Matrix P must be singular
D.	None of these
	Answer : A Explanation : According to Rouche's theorem, the system is consistent if and only if the coefficient matrix and the augmented matrix K are of the same rank, otherwise the system is inconsistent. Write your comments here: Updating your Comments.. Updating your Comments.. Report Error
	Option: A Explanation : Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here.

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