What is $(-1,3)$ in polar coordinates?

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Answer 1 · 2017-05-02T10:35:50

$sqrt10, 108.435 degrees$

Since you are on the second quadrant, compute the hypotenus first:

$h^2=(-1^2)+(3^2)=10$

In other words,

$h=sqrt10$

Compute angle by your triangle (108.435 degrees).

Your polar coordinates: $sqrt10, 108.435 degrees$

What is (-1,3)(-1,3) in polar coordinates?