MCQOPTIONS
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| 1. |
The equation \[\frac{{{x}^{2}}}{2-r}+\frac{{{y}^{2}}}{r-5}+1=0\] represents an ellipse, if [MP PET 1995] |
| A. | \[r>2\] |
| B. | \[2<r<5\] |
| C. | \[r>5\] |
| D. | None of these |
| Answer» C. \[r>5\] | |