Math for Econ II, Written Assignment 5 (30 points)Due Friday, October 30Please write neat solutions for the problems below. Show all your work. If you only write the answer with no work, youwill not be given any credit. Remember to write your name and recitation section number, and staple your homeworkif you have multiple pages!1. (3 points) Find all values ofxso that the following matrix is invertible:A=2-x03012-x03002-x00012-x.
2. (3 pts) Find00400-3-6-9-12400111.