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# How do I graph cardioid r = 2 + 2cosθ?
Use a Polar graph and plot for $\theta$ equal to 0,$\frac{\pi}{3} , \frac{\pi}{2} , \pi , \frac{2 \pi}{3} , \frac{4 \pi}{3} , \frac{3 \pi}{2} \mathmr{and} 2 \pi$ and draw a symmetrical curve.