This full solution covers the following key subjects: . This expansive textbook survival guide covers 57 chapters, and 1521 solutions. This textbook survival guide was created for the textbook: Elementary Linear Algebra with Applications, edition: 9. Since the solution to 1 from 1.5 chapter was answered, more than 227 students have viewed the full step-by-step answer. The answer to “(a) Show th:lt if A is any III )( n matrix. then I", A = A and A I" = A. (b) Show that if A is an II x I! scalar matrix. then A = r I. for some real number r” is broken down into a number of easy to follow steps, and 43 words. The full step-by-step solution to problem: 1 from chapter: 1.5 was answered by , our top Math solution expert on 03/13/18, 08:25PM. Elementary Linear Algebra with Applications was written by and is associated to the ISBN: 9780471669593.