The rectangular coordinates of a point are given. Find polar coordinates ​(r,θ​) of this point with θ expressed in radians. Let r>0 and −2π<θ<2π. (7,-7)

Algebra and Trigonometry (MindTap Course List)
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Chapter8: Polar Coordinates And Parametric Equations
Section8.CT: Chapter Test
Problem 1CT
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The rectangular coordinates of a point are given. Find polar coordinates ​(r,θ​) of this point with θ expressed in radians. Let r>0 and −2π<θ<2π.

(7,-7)

One possibility for the polar coordinates of this point is
nothing.
​(Simplify your answer. Type an ordered pair. Type your answer in radians. Type exact​ answers, using as needed. Use integers or fractions for any numbers in the​ expression.)

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