Examples of the graphs of r = 2 + 2cosk
q
for various noninteger values of k
r = 2 + 2cos0.2
q
r = 2 + 2cos0.5
q
r = 2 + 2cos0.7
q
r = 2 + 2cos1.5
q
r = 2 + 2cos2.25
q
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