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Distance between directrices is 10 and e...

Distance between directrices is 10 and eccentricity ` (1)/(sqrt(5))` .

A

`5x^(2) + 4y^(2) = 1`

B

`4x^(2) + 5y^(2) = 1`

C

`4x^(2) + 5y^(2) = 20`

D

`5x^(2) + 4y^(2) = 20`

Text Solution

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The correct Answer is:
C
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MARVEL PUBLICATION-CIRCLE AND CONICS -MULTIPLE CHOICE QUESTIONS
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  2. Distance between foci is 6 and eccentricity is 3/5

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  3. Distance between directrices is 10 and eccentricity (1)/(sqrt(5)) .

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  4. Distance between foci is 4 and distance between directrices is 5

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  5. Distance between foci is 8 and major axis is 10.

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  7. Distance between foci = 2 and vertices are (pm 2,0)

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