The equation given by \( x=\frac{1}{2} a\left(t+\frac{1}{t}\right),...
The equation given by \( x=\frac{1}{2} a\left(t+\frac{1}{t}\right), y=\frac{1}{2} b\left(t-\frac{1}{t}\right) \) represents
\( \mathrm{P} \)
(A) ellipse
(B) hyperbola
(C) parabola
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