1.

Let F_1(x_1, 0) and F_2(x_2, 0), for x_1 lt 0 and x_2 gt 0, be the foci of the ellipse x^2/9 +y^2/8 =1 Suppose a parabola having vertex at the origin and focus at F_2 intersects the ellipse at point M in the first quadrant and at point N in the fourth quadrant. The orthocentre of the triangle F_1MN is

Answer»

`( -9/10,0)`
` (2/3,0)`
` (9/10,0)`
`(2/3, SQRT6)`

ANSWER :A


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