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OpenStudy (anonymous):
Transform the following polar equation into an equation in rectangular coordinates: r=2 cos theta A. x + y = 2 B. y = 2x C. x = 2 D. (x-1)^2+y^2=1
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OpenStudy (amistre64):
well, recall that x = r cos(t)
OpenStudy (amistre64):
multiply both sides by r
OpenStudy (amistre64):
or, recognize this as a circle of radius 2 centered at 1,0
OpenStudy (amistre64):
not radius of 2, diameter of 2
OpenStudy (anonymous):
oh ok
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OpenStudy (amistre64):
no, |dw:1337226568539:dw|
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