The locus of the moving point whose coordinates are given by \( \le... VIDEO
The locus of the moving point whose coordinates are given by \( \left(e^{t}+e^{-t}, e^{t}-e^{-t}\right) \) where \( t \) is a parameter, is
\( \mathrm{P} \)
(1) \( x y=1 \)
(2) \( x+y=2 \)
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(3) \( x^{2}-y^{2}=4 \)
(4) \( x^{2}-y^{2}=2 \)
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