1. The problem statement, all variables and given/known data A- Find [L] for L : R3 → R3 where L first reflects throught the plane x−z = 0 and then rotates the zy-plane by pi/6 counterclockwise starting from the y-axis. B-Find [L] for L : R3 → R3 where L first rotates the xy-plane by pi/4 counterclockwise starting from the x-axis and then reflects throught the plane x + y − z = 0. 2. Relevant equations 3. The attempt at a solution To be honest I don't really know where to start off on this problem. Any help would be appreciated. Thanks!