HW 39. Cramer's Rule Name: This assignment has three parts: parts A and B together count half, and part C counts half. Part A (from Blurb 39, pp. 257-258). As you read along in the textbook, the answers to most of these questions should become blindingly obvious. Please be sure to answer each question directly and completely. 1. What has Zorro got to do with Cramer's rule? 2. How many different 2x2 determinants will you need to evaluate in order to solve a 2x2 system of equations? 3. Evaluating a 3x3 determinant involves solving how many 2x2 determinants? 4. How many different 3x3 determinants will you need to evaluate in order to solve a 3x3 system of equations? 5. Why is Cramer's rule a rather impractical method for solving a 4x4 system of equations