Prove Theorem 3.9(b)

Beginning of Semester To Do List Math 1310 1. Sign up for a CASA account in CourseWare at http://www.casa.uh.edu  CASA refers to both a website and a physical testing and tutoring center (its location is on the second floor of Garrison Gym).  The website will have all Practice Tests and all weekly Quizzes. It’s where you will be able to view your grades. You will submit your homework on the CourseWare website. The textbook for the course will be available only through CourseWare.  The CASA Testing Center is where you will go to take all exams. For these tests, you will first make a reservation by logging on to casa.uh.edu and schedule an exam on the Proctored Exams tab. You can get help at the CASA Tutoring Center.  If you have not taken a math class that uses CASA before, you will need to set up your account. If you already set up a CASA account for another class or the placement exams, you do not have to create another account. Just log in after classes start, and you will have access to any CASA courses for which you are enrolled.  If you have a problem registering with CASA, first make sure that you are enrolled (you can't get an account if you are not enrolled), then click on the "Email Tech Support" link on the CASA webpage. If nothing else works, go to 221A Garrison.  Full Semester access to CourseWare requires that you purchase an Access Code at the register at the Bookstore and then lo