Question

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Determine two pairs of polar coordinates for the point (2, -2) with 0° ≤ θ < 360°.

Answer 1

@mathmate

Answer 2

@mathstudent55 ???

Answer 3

http://keisan.casio.com/exec/system/1223526375

Answer 4

Hint:
Where there is no limitations on the parameters, r can be positive or negative, and \(\theta\) can take on positive and negative values.
However, if \(0\le \theta \lt 360\), then \(\theta\) is unique, and you're left with only one option.

Answer 5

Choices:
(2 square root of 2, 225°), (-2 square root of 2, 45°)
(2 square root of 2, 135°), (-2 square root of 2, 315°)
(2 square root of 2, 315°), (-2 square root of 2, 135°)
(2 square root of 2, 45°), (-2 square root of 2, 225°)

Answer 6

@mathmate

Answer 7

If you need more explanations on the hints, I'll be glad to help.