AP and TS EAMCET Engineering Model Paper 12

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Question : 70 of 160
 
Marks: +1, -0
If the radii of director circles of
x2
a2
−
y2
b2
=1‌&‌
x2
a2
−
y2
b12
=1
are 2 r and r respectively and e‌1 and e‌2 be the eccentricities of above hyperobola respectively then
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