If two parabola \( y^{2}=4 a(x-a) \) and \( x^{2}=4 a(y-a) \) P hav...
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If two parabola \( y^{2}=4 a(x-a) \) and \( x^{2}=4 a(y-a) \)
P have only one common point \( P \), then the equation of
W normal to \( y^{2}=4 a(x-k) \) at \( P \) is:
(1) \( y+x=4 a \)
(2) \( y+x=2 a \)
(3) \( y+x=4 \)
(4) \( y+x=2 \)
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