1. Consider the ollowing linear system, E 2x₁ + x₂x3 + 2x4 4x1 + 5x2 − 3x3 + 6x4 -2x1 + 5x2 - 2x3 + 6x4 4x1 + 11x2 − 4x3 + 8x4 5 9 4 = 2. = = = Explain how to find this system has a unique solution or not. Write down the Augmented matrix for the system ( i.e. write down Aug(A)). Find the upper triangular matrix U. Using the Gaussian elimination method, find the solution of the linear system.

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