In Exercises 2528, the first screen shows the augmented matrix, A, for a non square linear system

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In Exercises 25–28, the first screen shows the augmented matrix, A, for a non square linear system of three equations in four variables, w, x, y, and z. The second screen shows the reduced row-echelon form of matrix A. For each exercise,


a. Write the system represented by A.


b. Use the reduced row-echelon form of A to find the system’s complete solution.image

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College Algebra

ISBN: 9780134453262

7th Edition

Authors: Robert F Blitzer

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