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Find a Polar Equation for the Parametric Equations x=5cos⁡2θ,y=5cos⁡θsin⁡θx = 5 \cos ^ { 2 } \theta , y = 5 \cos \theta \sin \theta

Question 185

Multiple Choice

Find a polar equation for the parametric equations x=5cos⁡2θ,y=5cos⁡θsin⁡θx = 5 \cos ^ { 2 } \theta , y = 5 \cos \theta \sin \theta


A) x2+y2=25cos⁡2θx ^ { 2 } + y ^ { 2 } = 25 \cos ^ { 2 } \theta
B) r=5cos⁡θr = 5 \cos \theta
C) r=5sin⁡θr = 5 \sin \theta
D) y=xtan⁡θy = x \tan \theta

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