The equation of a common tangent to the parabolas
\( \mathrm{P} \) ...
The equation of a common tangent to the parabolas
\( \mathrm{P} \) \( y=x^{2} \) and \( y=-(x-2)^{2} \) is
W
(1) \( y=4(x-2) \)
(2) \( y=4(x-1) \)
(3) \( y=4(x+1) \)
(4) \( y=4(x+2) \)
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