How to represent $y = ax^2 + bx$ using polar coordinate system ? I want to find the length of the curve by polar coordinate system.
I've tried to $x\mapsto r\cos \theta$, $y\mapsto r\sin \theta$. The result is kind of weired.
How to represent $y = ax^2 + bx$ using polar coordinate system ? I want to find the length of the curve by polar coordinate system.
I've tried to $x\mapsto r\cos \theta$, $y\mapsto r\sin \theta$. The result is kind of weired.
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