Q)
Find a unit vector perpendicular to each of the vectors , $\overrightarrow{a}+\overrightarrow{b}$ and $\overrightarrow{a}- \overrightarrow{b}$ where $\overrightarrow{a}= 3 \hat i +2 \hat j+2 \hat k$ and $\overrightarrow{b}= \hat i +2 \hat j- 2\hat k$
...