\( C(0,1) \) is the center of the circle with radius unity. P \( P ...

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\( C(0,1) \) is the center of the circle with radius unity.
P \( P \) is the parabola \( y=a x^{2} \). The set of values of a for

W which they meet at a point other than the origin is:
(1) \( a0 \)
(2) \( a \in(0,1 / 2) \)
(3) \( (1 / 4,1 / 2) \)
(4) \( (1 / 2, \infty) \)
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