Question 5 Ps) Solve the following linear system (a) 7x₂ + 2x₂-3x₂ = - 12 2x₂5x₂ 3x3 = -20 <-26 x₁ - x₂ - 6x3 = (2) (3) Apply the LU decomposition for above equation with Doolitle factorization using direct calculation to solve the linear system. Find the value of x₁, x2, xj. above equation to solve the linear system. Find the

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