The normal to the rectangular hyperbola \( x y=c^{2} \) at the point ' \( t_{1} \) ' meets the c....
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The normal to the rectangular hyperbola \( x y=c^{2} \) at the
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point ' \( t_{1} \) ' meets the curve again at the point ' \( t_{2} \) '. Then
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the value of \( t_{1}^{3} t_{2} \) is
(1) -1
(2) \( -|c| \)
(3) \( |c| \)
(4) 1
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