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If radii of director circles of x^2/a^2...

If radii of director circles of `x^2/a^2+y^2/b^2=1 and x^2/a^2-y^2/b^2=1` are `2r and r` respectively, let `e_E and e_H` are the eccentricities of ellipse and hyperbola respectively, then

A

2

B

4

C

6

D

8

Text Solution

Verified by Experts

The correct Answer is:
C
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