How do you convert $-2i$ into polar coordinates?

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Answer 1 · 2015-11-24T11:26:40

$2i$ is equivalent (in polar coordinates to $(2,(3pi)/2)$

$-2i$ has no Real components and therefore falls along the Imaginary axis at a distance of $2$ below the Real axis.
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How do you convert -2i-2iinto polar coordinates?