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Let L L ' be the latusrectum and S be...

Let L L ' be the latusrectum and S be a focus of the ellipse `(x^(2))/(a^(2))+(y^(2))/(b^(2))=1` if `Delta SLL'` is equilaterial ,then the eccentricity of the ellispe ,is

A

`1//sqrt(5))`

B

`1//sqrt(3)`

C

`1//sqrt(2)`

D

`sqrt(2)//3`

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The correct Answer is:
B
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  17. if one end of a diameter of the ellipse 4x^(2)+y^(2)=16 is (sqrt...

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  18. the equation of a diameter conjugate to a diameter y=(b)/(a)x of ...

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  19. if theta and phi are eccentric angles of the ends of a pair of ...

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