Question

Please help! Having trouble with this Precalc/Trig problem :/ Click attached

Answer 1

hint:

(r1*cis(theta1))/(r2*cis(theta2)) = (r1/r2)*cis(theta1 - theta2)

Answer 2

in the division Angles gets subtracted.
\[\Large 4[\cos(250-190)+isin(250-190)]\]
or
\[\Large 4[\cos(60)+isin(60)]\]
now simplify it.put the values of cos(60) and sin(60).

Answer 3

2?

Answer 4

:) So the second option?

Answer 5

yup.

Answer 6

THANKS