Q1 (a) Apply Gaussian Elimination method to solve the following linear systems equations:
3 x 1 + 1 x 2 – 2 x 3 + 7 = 0
2 x 1 + 2 x 2 + 1 x 3 – 9 = 0
– 1 x 1 – 1 x 2 + 3 x 3 – 6 = 0
(b) A linear system equation is given:
x + y + z = 6
x + 2 y + z = 8
2 x + 2 y + z = 10
Solve the equations by using Cramer’s Rule method.
