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JEE Math Practice Question

If the area of the triangle whose one vertex is at the vertex of the parabola, y2 + 4(x – a2) = 0 and the othertwo vertices are the points of intersection of the parabola and y-axis, is 250 sq. units, then a value of 'a' is :

  1. A.$$5\sqrt 5 $$
  2. B.$${\left( {10} \right)^{2/3}}$$
  3. C.$$5\left( {{2^{1/3}}} \right)$$
  4. D.5

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