Answer Exercise 1.7.17 for the system x + 4y -
3z = -3. 25x + 97y - 35z = 39. 35x - 22y + 33 z = -15.
Exercise 1.7.17
(a) Find the exact solution to the linear system
x - 5 y - z = l.1/6x - 5/6y + z = 0,2x-y = 3.
(b) Solve the system using Gaussian Elimination with 4 digit rounding.
(c) Solve the system using Partial Pivoting and 4 digit rounding. Compare your answers.