Answer:
z = -9.538546756+ 15.26486573i
Step-by-step explanation:
z = |z| cos theta + |z| i sin theta
We know |z| and theta
z = 18 cos 122 +18i sin 122
- 9.539 + 15.265i
express the complex number in trigonometric form, that is
[tex]z_{1}[/tex] = | [tex]z_{1}[/tex] |(cosΘ + isinΘ)
= 18(cos122° + isin122°)
= - 9.539 + 15.265i
