Consider (1/2)(u1-u2)=(0,1,0) and (1/2)(u1+u2)=(1,0,1)physicsss said:I'm stuck on the following problem:
Describe the span of the vectors u1 and u2 in R^3, where
u1 = (1, 1, 1), u2 = (1, −1, 1)
I know that the span is a(u1)+b(u2), which becomes (a+b,a-b,a+b), but I don't know where to go from here.
TIA.