8. (15 points) Use Cramer's rule to solve the following system of equations: x-y-z=0 2x+y+z=3 x+2y+z=0 9. (10 points) (
Posted: Fri Jul 01, 2022 5:28 am
9. (10 points) (BONUS question for extra credit, you don't need to answer it) Is the solution set of the following linear system a vector space ? 2x₁ +5x₂ - 4x₂ = 0 2x1 +4x22x3 = 0