Q109
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
AnswerB.
Vector q must have only non-zero elements
C.
Matrix P must be singular
D.
Matrix P must be square
Answer: Option A
Solution
Answer: Option A
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