• anonymous
Converting Cartesian coordinates into polar coordinates. (x,y) = (3,-5) (r,$$\theta$$) = ($$\sqrt{34}$$,???) $$r=\sqrt{(3)^2+(-5)^2}=\sqrt{9+25}=\sqrt{34}$$ $$\theta = tan^{-1}(\frac{(-5)}{(3)})=???$$ My answer needs to be in radians an I'm not seeing how the unit circle is going to be of much help here. It's not a nice angle like $$\frac{\pi}{2}$$, $$\frac{\pi}{3}$$, $$\frac{\pi}{4}$$, $$\frac{\pi}{6}$$, or $$\pi$$
Mathematics

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