\( \frac{x^{2}}{r^{2}-r-6}+\frac{y^{2}}{r^{2}-6 r+5}=1 \) will represent an ellipse if ' \( r \)....

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\( \frac{x^{2}}{r^{2}-r-6}+\frac{y^{2}}{r^{2}-6 r+5}=1 \) will represent an ellipse
\( \mathrm{P} \)
if ' \( r \) ' lies in the interval
(1) \( (-\infty,-2) \)
(2) \( (3, \infty) \)
(3) \( (5, \infty) \)
(4) \( (1, \infty) \)


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