$\"\"$

The vector is $\"\"$ .

The magnitude of v is $\"\"$ .

The direction of angle is $\"\"$ .

Moreover, because $\"\"$ lies in quadrant II $\"\"$ , $\"\"$ lies in quadrant II and its reference angle is $\"\"$ .

So, it follows that $\"\"$ . $\"\"$

The magnitude of v is $\"\"$ and angle is $\"\"$ .