# Math Help - Vector and Angles

1. ## Vector and Angles

Thank You!!!

2. Originally Posted by qbkr21
Thank You!!!
If you start with a ray pointing along the x-axis $\theta = 0$, if you rotate the ray $\theta = \frac{\pi}{3}$, then move aong the ray 4 unit (this is v), this determines a point. From this, you can draw a triangle in the first quadrant. The vector you seek is

$<|\,v\,|\, \cos \theta,\; |\,v\,| \sin \theta >$