1. The problem statement, all variables and given/known data So here is the question: Matrix A corresponds to the linear transformation T obtained by first rotating a vector in R3 through angle ∏/3 about the z axis and then through angle ∏/4 about the x-axis. Find the parametric equation for the axis of rotation. 2. Relevant equations 3. The attempt at a solution Finding matrix A: First I write down the two standard rotations with the first one on the right and multiply them: This gives me matrix A. I then take the result and subtract the 3x3 identity matrix (so Mat(A) - I3). I augment this by the 3x1 zero vector and rref. So the following is what I am rref-ing. (so I am solving this system (A-I)[w]=0, and the axis parallel to [w] is the axis of rotation) But when I rref this, I get the following: W3=t where t is in the reals W2=-0.4142t W1=0.7174t This doesn't seem right to me.. so the parametric form of the axis of rotation is this: x=0.7174t y=-0.4142t z=t Thanks so much in advance!