Question

Convert 13 + 7i to polar form

Answer 1

z = √218 [ cos Θ + i sin Θ] where tan Θ = 7/13 ---> √218 e^(0.4939 i )

Answer 2

Woah. Anyway you could clear up those ? marks?

Answer 3

try refreshing the page

Answer 4

Ah. That was strange. So it's... uh... √218(cos0.49 + isin0.49)?

Answer 5

\(\large {
\begin{array}{ccllll}
13 &+ {\color{blue}{ 7}}i\\
x&{\color{blue}{ y}}
\end{array}\qquad
\begin{cases}
r=\sqrt{x^2+y^2}\\
\theta=tan^{-1}\left(\cfrac{y}{x}\right)
\end{cases}\qquad r[cos(\theta)-isin(\theta)]
}\)

Answer 6

Oh wait, in degrees... 28.3

Answer 7

yes

Answer 8

Thanks guys!

Answer 9

yw