I am trying to graph r^2=2cos(2theta)

in my answer key it's supposed to be an infinity symbol but I get a 4 leaf lemniscate. I am in polar mode so what can be the error?

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- Mar 31st 2009, 01:03 PMaaronbCalculator help
I am trying to graph r^2=2cos(2theta)

in my answer key it's supposed to be an infinity symbol but I get a 4 leaf lemniscate. I am in polar mode so what can be the error? - Mar 31st 2009, 01:12 PMOpalg