1.
The vectors are given by A=i^+2j^+2k^\vec{A} = \hat{i} + 2\hat{j} + 2\hat{k} and B=3i^+6j^+2k^\vec{B} = 3\hat{i} + 6\hat{j} + 2\hat{k}. Another vector C\vec{C} has the same magnitude as B\vec{B} but has the same direction as A\vec{A}. Then which of the following vectors represents C\vec{C}?