##### Practice Final #5b
tanishaharlalka
Not 100% sure about this, but for part b, using the projection method the Professor went over in class, I got 5/6<1,2,1> + 9/31<-3/2,-1,7/2> which simplified to <37/93, 128/93, 172/93> Anyone else get this?
nikhil2324: May 31, 2015, 9:42 p.m.
My second vector was <-7/6, -1/3, 11/6>. How did you do your calculation?
wqzhang: May 31, 2015, 10:47 p.m.
Start off the problem by turning the given set into an orthogonal basis, as shown by the professor in class. Essentially you need to transform {V_{1}$, V_{2}$} into an orthogonal basis {W_{1}$, W_{2}$} using the Gram-Schmidt process. If you do this, you should get the same answer above, as shown by tanishaharlalka. ^