## anonymous one year ago PRE-CALC QUESTION, HELP PLEASE 1.) Determine whether the vectors u and v are parallel, orthogonal, or neither. u = <6, -2>, v = <8, 24>

1. anonymous

@Luigi0210

2. anonymous

and this one too

3. rishavraj

see if z = a + ib so $z = \left| z \right| (\cos \theta + i \sin \theta)$

4. rishavraj

in the question a = -1 and $b = 3\sqrt{3}$ so $\left| z \right| = \sqrt{(-3)^2 + (3\sqrt{3})^2}$

5. rishavraj

*a = -3

6. anonymous

but what answer is it @rishavraj

7. rishavraj

B

8. rishavraj

@em2000 got it??

9. anonymous

yes!!

10. anonymous