A set of linear equations is represented by the matrix equation Ax = b. The necessary condition for the existence of a solution for this system is
| A. | A must be invertible |
| B. | b must be linearly depended on the columns of A |
| C. | b must be linearly independent of the columns of A |
| D. | None of these |
Answer : A Explanation : x=A-1b himanshu said: (5:16am on Tuesday 20th February 2018)
If number of equation is strictly greater than number of variable,than the matrix A will not be a square matrix.Than A inverse has no meaning.So i think option B will always correct whatever the system(if it has a solution).
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Option: A Explanation : Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. Explanation will come here. |
