Hi All,

I'm having problems with this question and need someone to look at my workings and give a gentle push in the right direction. If anyone can help I'd be most grateful.

Calculate for the curve whose equation in polar coordinates is

So my understanding is that polar coords are given as so not quite sure what to do with this. Would I rearrange to find such that and keep r as it is????

Or is it using r and with &

Then find and hence and and finally get the result

Best regards, Felix