Cramer’s+Rule+Set+6

Give an example of a system of 2 equations that has no solution, and ask your classmate to demonstrate what happens when he/she uses Cramer's Rule to solve. Then give a system of 2 equations that has infinitely many solutions and ask again what happens when one uses Cramer's Rule to solve.

A question of mine: How do you evaluate a 2x2 determinant? Give an example.

Another question of mine: How do you evaluate (by hand) a 3x3 determinant? There are two methods. Give an example of a 3x3 determinant, and show both methods.

{2, 13, 3} {3, 3, 14} {4, 7, 10} x {6, 7, 9} {5, 8, 12} {5, 8 19}

Solve in two Ways (Jeremy Comer) Are you asking someone to multiply these matrices? Because that is not using determinants...or Cramer's Rule

Give an example of a system of 3 equations with 3 unknowns. Ask your classmate to demonstrate how to solve for one variable in particular (you decide).