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OpenStudy (anonymous):
PRE-CALC/TRIG: Convert the polar equation to rectangular form and describe the curve: (@=theta) r=2sin@-4cos@
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Directrix (directrix):
Circle. r = 2(y/r) -4(x/r) r^2 =2y -4x X^2 + y^2 = 2y -4x
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