Question: a) Use three methods (Matrix Method, Cramer's Rule and Gaussian elimination) to solve simultaneous equations below. x+y+z=7 x- y+ 2z = 9 2x +y

a) Use three methods (Matrix Method, Cramer's Rule and Gaussian elimination) to

a) Use three methods (Matrix Method, Cramer's Rule and Gaussian elimination) to solve simultaneous equations below. x+y+z=7 x- y+ 2z = 9 2x +y -z = 1 b) Determine the eigenvalues and eigenvectors of the following matrix below. 1 -1 2) -3 -2 3 2 -1 1

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