Practice Final #7 Solution (by both transpose & projection)
kcason
I figured since David provided us with another way to solve number 7 using a transpose of a matrix, I decided to solve the problem using this method as well as the typical projection method to make sure they match. Looking at other students' work for 7, a few factored out the denominator completely... so here's a version not factored. The first one is with the transpose method, second link is using the projection. https://www.dropbox.com/s/e9ifetyi6ji10bg/%237%20Transpose.jpg?dl=0 https://www.dropbox.com/s/6vbg82uvgkwy58p/%237%20Projection.jpg?dl=0 Let me know if anything's hard to understand!