The value of a for which
\( \mathrm{P}^{152} \) \( (13 x-1)^{2}+(13... VIDEO
The value of a for which
\( \mathrm{P}^{152} \) \( (13 x-1)^{2}+(13 y-2)^{2}=\left(a^{2}-1\right)(5 x+12 y-1)^{2} \)
W represents an ellipse is:
(1) \( (1,2) \)
(2) \( (-\sqrt{2},-1) \)
(3) \( (1, \sqrt{3}) \)
(4) None of these
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\( \ma...