Linear Algebra 2 5 1 5 1 (41.11 KiB) Viewed 31 times
Linear Algebra 2 5 1 5 2 (31.59 KiB) Viewed 31 times
= Homework: Section 2.5 y = Solve the equation Ax = b by using the LU factorization given for A. Also solve Ax = b by ordinary row reduction. 4 1 4 A = X = -4 8 4-6 -2 -4 - 2 6 1 4 1 = - 1 Let Ly = b and Ux=y. Solve for x and y. 2 4 - 6 -6-2 00 10 2 -3 1 4 -6 -2 -2 -1 0 - 1 0 , b = Question 1, 2.5.1 Part 2 of 2 Row reduce the augmented matrix [A b] and use it to find x. The reduced row echelon form of [A b] is yielding x = | > .... HW Score: 70%, 3.5 of 5 points Points: 0.5 of 1
= Homework: Section 2.5 Find an LU factorization of the matrix A (with L unit lower triangular). A = U= 2-4 2 1 - 1 - 1 7 0 2-4 2 - 3 0 0 4 (Simplify your answer.) 0 N 4-0 (Simplify your answer.) Question 5, 2.5.11 Part 2 of 2 HW Score: 70%, 3.5 of 5 points Points: 0.5 of 1 Next question Sa
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