Math

Which of the following is another representation of the polar coordinate -9, -90 degrees?
Is it 9,270 degrees

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1. (-9,-90°)
this would point you clockwise 90° or 270° using the standard rotation.
You would then go in the opposite direction for 9 units
so equivalent to (9, 90°)

(9,270°) would be the same as (9, -90°)

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posted by Reiny

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