Problems for next week:

Updated under schedule as well. All from the compendium: 

• For linear algebra: 72 and 108.  For 108 part (c), also do the following (a tool from Mathematics 3): 
  Let M be the augmented coefficient matrix (i.e. the coefficient matrix but with the RHS stacked up as third column); then the system says M (x, y, -1)' = 0; that is, it says M (x, y, z)' = 0 AND z=-1. Explain why |M| = 0 is necessary for a solution to exist.

• For implicit functions: 35, 38, 63, 67 (b) and (c), 105.