In Exercises 9 and 10, write the system first as a vector equation and then as a matrix equation. 9. 3x1 + x2 - 5x3 = 9

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In Exercises 9 And 10 Write The System First As A Vector Equation And Then As A Matrix Equation 9 3x1 X2 5x3 9 1 (51.28 KiB) Viewed 49 times

In Exercises 9 and 10, write the system first as a vector equation and then as a matrix equation. 9. 3x1 + x2 - 5x3 = 9 10. 8x1 - x2 = 4 x2 + 4x3 = 0 5x1 + 4x2 = 1 x - 3x2=2 - 131 Given A and b in Exercises 11 and 12, write the augmented matrix for the linear system that corresponds to the matrix equation Ax = b. Then solve the system and write the solution as a vector. Eld 11. A [. 1 2 4. 0 1 5 -2 -4 -3 b= 2 9 1)-( --[:] d 12. A= 2 1 -3 -1 2 0 5 3 b = 13. Let u= Al and A= 3 -5 -2 6 1 1 Is u in the plane R spanned by the columns of A? (See the figure.) Why or why not? u? Plane spanned by the columns of A u? You 2