Math 115

Review Session - Starts at 11 minutes.

@4:55 How do you use diagonalization to find A^k?
@11:47 Prove that S={a1X+a2x^2 | a1, a2 are real} is a subspace of P_2(R).
@18:19 Is the set containing p(x) = 2 +a1x + a2x^2 a subspace?
@1913 Why is that if lambda = 0 is an eigenvalue of A, then A is not invertible?
@37:54 Recommended exercises for final exam question A4 from Practice Problems 4.2.
@51:42 What is the difference between REF and RREF?
@1:04:21 Ryan's extra problems #2