The angle between two vectors $4\hat{i} + 3\hat{j} + \hat{k}$ and $-3\hat{i} + 2\hat{j} + 6\hat{k}$ is ....... $^o$

The angle between $(\overrightarrow{A} - \overrightarrow{B})$ and $(\overrightarrow{A} \times \overrightarrow{B})$ is $(\overrightarrow{A} \neq \overrightarrow{B})$. (in $^{\circ}$)

The unit vector perpendicular to both vectors $A = -3 \hat{i} - 2 \hat{j} - 3 \hat{k}$ and $B = 2 \hat{i} + 4 \hat{j} + 6 \hat{k}$ is:

Which of the following is the unit vector perpendicular to $\vec{A}$ and $\vec{B}$?

If the relationship between three vectors is $\vec{A} \cdot \vec{B} = 0$ and $\vec{A} \cdot \vec{C} = 0$,then $\vec{A}$ is parallel to:

Define the vector product of two vectors.