Walk Like a Mathematician - Administration

Determinant of a 3x3. A = a1 b1 c1 a2 b2 c2. a3 b3 c3 |A| = a1(b2c3(c2b3) ( a2(b1c3 ( c1b3) + a3(b1c2 (c1b2) *Note that (b2c3(c2b3) is the determinant of a1’s minor b2 c2. b3 c3. Example: Find the determinant of the following matrix. A = 3 -3 4. 1 -2 2. 2 -2 -1. Let’s investigate the idea of finding the determinant based upon using ... ................
................