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Statement 1: The lines from vertex to the two
P extremities of a focal chord of parabola \( y^{2}=4 a x \) are

W at an angle \( \pi / 2 \). and
Statement 2: If extremities of focal chord of parabola are \( \left(a t_{1}^{2}, 2 a t_{1}\right) \) and \( \left(a t_{2}^{2}, 2 a t_{2}\right) \) then \( t_{1} t_{2}=-1 \).
(1) Statement I is true, statement II is true; statement II is a correct explanation for statement I.
(2) Statement I is true, statement II is true; statement II is not a correct explanation for statement I.
(3) Statement I is true, statement II is false.
(4) Statement I is false, statement II is true.
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