Q.

In an ellipse, the distance between the foci is  6 and length  of semi minor axis is 4, then eccentricity of the ellipse is

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a

25

b

35

c

23

d

12

answer is B.

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Detailed Solution

2ae=6  and   b=4. So  a2e2=a2−b2⇒a2=25  and e=35
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