PassageBased on the above data, answer the given subquestions. Let u1=(1,0,1)u_1=(1,0,1), u2=(1,1,1)u_2=(1,1,1), and W=span{u1,u2}W=\operatorname{span}\{u_1,u_2\}.
QuestionLet (a,b,c)(a,b,c) be the vector obtained by projecting the vector (1,2,3)(1,2,3) on WW. Find a+b+ca+b+c.