$\"\"$

If the angle between the two vectors $\"\"$ and $\"\"$ is $\"\"$ , then $\"\"$ .

$\"\"$

The vectors are $\"\"$ and $\"\"$ .

Find $\"\"$ .

$\"\"$

Find $\"\"$ .

$\"\"$ .

Find $\"\"$ .

$\"\"$ .

Angle between the vectors :

$\"\"$

The angle between the vectors is $\"\"$ . \ \