For the parabola

MATHEMATICS · Single correct · CBSE · Mathematics · Conic Sections · Conic Sections

Problem

For the parabola x2=4ayx^{2}=4ay, the ordinate of a point is 5a5a (a>0)(a>0). Determine all possible abscissae. (a) 25 a2\sqrt5\,a (b) 20a20a (c) ±25 a\pm 2\sqrt5\,a (d) 5 a\sqrt5\,a

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