For the given rectangular equation, write an equivalent polar equation.x2 + 4y2 = 4
A. r2(4 cos2? + sin2?) = 4
B. r2(cos2? + 4 sin2?) = 4
C. cos2? + 4 sin2? = 4r
D. 4 cos2? + sin2? = 4r
Answer: B
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A. 
B. 
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