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A focus of an ellipse is at the origin. The directrix is the l

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A focus of an ellipse is at the origin. The directrix is the line $x = 4$ and the eccentricity is 1/2. Then the length of the semimajor axis is

\frac{8}{3}

\frac{2}{3}

\frac{4}{3}

\frac{5}{3}

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A focus of an ellipse is at the origin. The directrix is the line

x = 4

and the eccentricity is 1/2. Then the length of the semimajor axis is

11 mins ago

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Question Text	A focus of an ellipse is at the origin. The directrix is the line $x = 4$ and the eccentricity is 1/2. Then the length of the semimajor axis is
Answer Type	Video solution: 1
Upvotes	151