Mathematics
OpenStudy (didee):

Linear Algebra: Which of the following statements is/are true? A. The system 4x + 2y + 3z = -1 3x – y + 2z = -5 x + 2y – z = 8 has a unique solution B. If the coefficient determinant of a linear system is 0, then system has no solution. Option 1. Only A 2. Only B 3. Both A and B 4. Neither A nor B

OpenStudy (anonymous):

This isn't linear algebra.

OpenStudy (anonymous):

OpenStudy (chaise):

Linear refers to the biggest power being 1. This is the case. This is linear algebra. I don't quiet know what you're asking, but in those equations. x will have a value, y will have a value and so will z. If they are solved simultaneously. Question B isn't clear to me.

OpenStudy (anonymous):

solved A, yes only 1 solution. B, if det = 0, solution is undefined. Answer: 3

OpenStudy (didee):

thanks for the answers. moriaw, can you please provide steps as to how you solved system A? I keep going in circles when trying to solve.

OpenStudy (anonymous):

|dw:1314346990911:dw|