S209 module 1 - Computer Science

5) Find the inverse of the matrices below (if possible). Do (a) by hand & (b) with a calc. a) b) (4.4) DYR3. 6) Use a graphing calculator to solve the system of linear equations. (4.5) 4x – y + z = 18. 2x + 2y + 3z = 19. 5x – 2y - 2z = 2. 7) Find the discriminant and determine the number of real solutions. (5.4) = 0 ................
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