The letters r and θ represent polar coordinates.

Mathematics
Tutor: None Selected Time limit: 1 Day

Mar 21st, 2015

sqrt(x^2+y^2) = 1+x/sqrt(x^2+y^2)

(x^2+y^2) = sqrt(x^2+y^2)+x, so th first answer is correct

Mar 21st, 2015

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