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Suppose the coefficient matrix of a linear system of four equations in four variables has a pivot in each column. Explain why the system has a unique solution.

Respuesta :

Answer:

the matrix described in the question is a linearly independent matrix, and linearly dependent matrix has a unique solution.   see further explanation below

Step-by-step explanation:

For any matrix to have a pivot column in all its column, it means that the matrix must be linearly dependent

Thus, as the columns are linearly independent , the system of equation have a unique solutions .

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