A quadratic equation is chosen from the set of all \( \mathrm{P} \)...

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A quadratic equation is chosen from the set of all
\( \mathrm{P} \) the quadratic equations which are unchanged by

W squaring their roots. The Probability that the equation has unequal roots is
(1) \( \frac{1}{2} \)
(2) \( \frac{3}{4} \)
(3) \( \frac{3}{8} \)
(4) \( \frac{7}{16} \)
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