Question

express the complex number -3+2i in trigonometric form with theta (0,2π), thx.

Answer 1

For any complex number z=a+bi, we can express z as r(cosθ+isinθ), where:
\(\Large r=\sqrt{a^2+b^2}\)
\(\Large \theta=\tan^{-1}\dfrac ba\)

Answer 2

Thanks, I kind of have forgotten that over a long semester... That was very helpful.

Answer 3

You could just solve a=rcosθ and b=rsinθ and you'd obtain the same result.