(a) Find the inverse of the matrix A-¹ = A = X1 + X1 X2 X3 3 -5 1 || 0 1 3 -6 1 1 -1 (b) Use the answer from part (a) to solve the linear system 3x1 + 3x2 + 10x3 - 5x1 6x2 15x3 3x3 x2 0 + 10 -15 3 15 -5 = - = 5 4 -5
(a) Find the inverse of the matrix A-¹ = A = X1 + X1 X2 X3 3 -5 1 || 0 1 3 -6 1 1 -1 (b) Use the answer from part (a) to solve the linear system 3x1 + 3x2 + 10x3 - 5x1 6x2 15x3 3x3 x2 0 + 10 -15 3 15 -5 = - = 5 4 -5
Chapter7: Matrices And Determinants
Section7.3: The Inverse Of A Square Matrix
Problem 5ECP
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I tried to do part B, which gave me x1=65, x2=-24 and x3=10, but it says its wrong.
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