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The equation (x^(2))/(1-r)+(y^(2))/(r-3)...

The equation `(x^(2))/(1-r)+(y^(2))/(r-3)+1=0` represents an ellipse if :

A

`rgt1`

B

`rgt3`

C

`1ltrlt3`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
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