This textbook survival guide was created for the textbook: Mathematical Structures for Computer Science, edition: 7. Since the solution to 12 from 5.7 chapter was answered, more than 222 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 12 from chapter: 5.7 was answered by , our top Math solution expert on 01/18/18, 05:04PM. Mathematical Structures for Computer Science was written by and is associated to the ISBN: 9781429215107. This full solution covers the following key subjects: . This expansive textbook survival guide covers 41 chapters, and 1956 solutions. The answer to “a. Prove that i 2 = i for any identity matrix I. b. Prove that i n = i for any identity matrix I and any positive integer n.” is broken down into a number of easy to follow steps, and 29 words.