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Mathematics 30 Online
OpenStudy (anonymous):

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

OpenStudy (zpupster):

you are in the 4th quadrant|dw:1446741528223:dw|

OpenStudy (zpupster):

|dw:1446741599350:dw| tan(θ) = r sin(θ) / (r cos(θ)) = -2 / 2 = -1

OpenStudy (zpupster):

tan^-1 = 315 315 - 180 is the other angle

OpenStudy (zpupster):

2 = r cos(45) solve for this to get r (r,theta)

OpenStudy (anonymous):

thank you

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