- #1

playboy

A Question reads:

let ||u|| =1 ||v|| = 2 ||w|| = 3^0.5 (or root 3) <u,v>=-1

<u,w>=0 and <v,w>=3

Given this information, who that u + v = w

I gave it my best show.

i know that ||u|| (im going to write |u| for slimpicity) ... i know that |u| = <u,u> = 1 and |v| = <v,v> = 2 and that |w| = <w,w> = root 3.

I did some arithmatic with the given data, but i just cannot seem to isolate u and v.

What I am now trying to do is work from converting an inner products to the vectors, however, I dont even think that is possible. Infact, I looked through two different text books and I still couldn't find it.

Could somebody give me a head start, for where to being. Dont give me too much because I want to work this out on my own.

Thanks