Do NOT do y Exam 2: Math 3280, Fall 2017, Section 001 There are 4 problems on this test. Please label and organize y box your answers. Good luck! our problems, show your Problem 1: (15 points) For the following problem (a) (2 points) Find the determinant of A (b) (3 points) Find the inverse of A (c) If Ax=b. (i) (2 points) Solve for x using the inverse of A. (ii) (3 points) Solve for x using Cramer's rule. (iii) (3 points) Solve for x using elementary row operations. (iv) (2 points) What was true of the determinant of A that assured that would have a unique solution? consider mat d'A A'-[ 2 determinant 07 A. ;s lA 1-1 2
