Let
a=(7, −3, 5),b=(2, −1, 2)\mathbf{a} = (7,\ -3,\ 5), \qquad \mathbf{b} = (2,\ -1,\ 2)a=(7, −3, 5),b=(2, −1, 2)
Compute the vector projection of a\mathbf{a}a onto b\mathbf{b}b, that is projba\operatorname{proj}_{\mathbf{b}}\mathbf{a}projba.
Select all that apply.
(18, −9, 18)(18,\ -9,\ 18)(18, −9, 18)
(6, −3, 6)(6,\ -3,\ 6)(6, −3, 6)
(1, 0, −1)(1,\ 0,\ -1)(1, 0, −1)
(2, −1, 2)(2,\ -1,\ 2)(2, −1, 2)