If $\overrightarrow A \times \overrightarrow B=\overrightarrow B \times \overrightarrow A$ then the angle between $\overrightarrow A$ and $\overrightarrow B$ is
$\pi / 2$
$\pi / 3$
$\pi$
$\pi / 4$
Dot product of two mutual perpendicular vector is
The resultant of the two vectors having magnitude $2$ and $3$ is $1$. What is their cross product
The angle made by the vector $\left( {\hat i\,\, + \;\,\hat j} \right)$ with $x-$ axis and $y$ axis is
Two adjacent sides of a parallelogram are represented by the two vectors $\hat i + 2\hat j + 3\hat k$ and $3\hat i - 2\hat j + \hat k$. What is the area of parallelogram