If the normals drawn at the points \( t_{1} \) and \( t_{2} \) on t...

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If the normals drawn at the points \( t_{1} \) and \( t_{2} \) on the
P parabola meet he parabola again at its point \( t_{3} \), then

W \( t_{1} t_{2} \) equals:
(1) 2
(2) -1
(3) -2
(4) \( t_{3}-\frac{2}{t_{3}} \)
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