MATH 2550 Midterm: MATH 2550 Iowa Exam 2Fall02a
Document Summary
Math 2550 matrix algebra exam #1 (form d) Write your answer in parametric vector format (note this is a multipart question). 1 as a linear combination of the columns of a: 0 as a linear combination of the columns of a: Let a be the coe cient matrix from problem 1. [1 point extra credit] vectors are columns of a. brie y explain. Given an example of 4 vectors that span r4 where 3 of your. Use the inverse found in part a to solve the following system of equations: Given an example of matrices a and b where neither are the zero matrix, but. Circle t for true and f for false (watch out for trick(s)). If a, b, c are matrices and ab = ac, then b = c. If a, b, c are square matrices and ab = ac, then b = c. If a and b are matrices, then ab = ba.
