I need to find the projection of vector $\displaystyle \vec{a} = \sqrt{2}\cdot\vec{i}-3\cdot\vec{j}-5\cdot\vec{k}$ onto the line that makes $\displaystyle \alpha = 45^{\circ}$ angle with $\displaystyle Ox$, $\displaystyle \gamma = 60^{\circ}$ angle with $\displaystyle Oz$ and an acute angle with $\displaystyle Oy$