# Linear Algebra questions and answers in November 2022

find the equation relating x,y,z for any vector b = (x,y,z) in the span of the vectors u 1 , u 2 . u 1 = (1, 2, -2), u 2 = (2, 7, -5) the answer is 4x+y+3z = 0 What are the proper steps to ... Solve the following questions: . 1- Find the matrix and, when A = B, the digraph of the relation R. a. A = {1, 2, 3, 4}, B = {1, 4, 6, 8, 9}; aRb if and only if b = a". b. A = {1, 2, 3, 4, 6} =... Hi I nedd help with numbers #1, 3, 9, 11, 13, 15, 21, 23, 29, and 37 please. It's all linear algebra. . 3.1 Cofactor Expansion 209 EXERCISES In Exercises 1-8, compute the determinant of each ma...