Can you finish?
Let V be a real inner product space. Show that
for all .
Not really sure where to start with this...
Do i start by proving that (x , y) = (y , x)? which i can see because of the absolute value signs (is that what the || lines are called..?) that it is.
Then is it just showing that
and also
(x , x) = 0
Oh yeah i see now.
Yeah can finish, ||x||'s and ||y||'s cancel leaving 4(x , y) so need a 1/4 to make it = (x , y). Thanks. Think i was just confused with what the question was asking. Been doing a lot of inner product proofs involving what i said i thought had to be done in my first post.