Write a Polar Equation of an Ellipse with Eccentricity $0.3$ And Directrix

question 5

Multiple Choice

Write a polar equation of an ellipse with eccentricity $0.3$ and directrix $y = - 7$

• A) \(r = \frac { 7 } { 10 - 3 \sin \theta }\)
• B) \(r = \frac { 2 } { 1 - 3 \sin \theta }\)
• C) \(r = \frac { 21 } { 10 + 3 \sin \theta }\)
• D) \(r = \frac { 21 } { 10 - 3 \sin \theta }\)
• E) \(r = \frac { 21 } { 10 - 3 \cos \theta }\)

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