Given the vector v=(1,1,1)v = (1, 1, 1)v=(1,1,1), find the projection of vvv onto the subspace spanned by u=(1,0,−1)u = (1, 0, -1)u=(1,0,−1).
(0,0,0)(0, 0, 0)(0,0,0)
(1,0,−1)(1, 0, -1)(1,0,−1)
(1,1,1)(1, 1, 1)(1,1,1)
(12,0,−12)(\frac{1}{2}, 0, -\frac{1}{2})(21,0,−21)