I am at a standstill with the solution to this problem.(adsbygoogle = window.adsbygoogle || []).push({});

I need to convert r^2=2cos(2 theta) to rectangular form.

I know that x = rcos(theta) and y = rsin(theta)

so far I have r = (2cos(2theta))/r

then I substitute for r

sqrt(x^2+y^2)= (2cos(2theta))/sqrt(x^2+y^2)

Then I hit a brick wall.

please help me knock down this wall.

Thanks

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# Homework Help: Polar to Rectangular conversions

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