What is the projection of vector v=(1,2,3)v = (1, 2, 3)v=(1,2,3) onto the subspace WWW defined by x+y+z=0x + y + z = 0x+y+z=0?
v−projnvv - \text{proj}_n vv−projnv where n=(1,1,1)n = (1, 1, 1)n=(1,1,1)
vvv
projnv\text{proj}_n vprojnv
000