More video solutions, update #1
June 29th, 2014
More video solutions have been added for the A.2 problem set. Specifically, video solutions for problems 125, 127, 128, 129, 130, 132, 133, 134, 135 and 136 are now available.
Again, remember that it is a good idea to start at the end of each problem set and work backwards, since newer problems are added there. (This explains why we’re building out the video solution collection starting from the end of each problem set.)