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If the locus of the middle of point of contact of tangent drawn to the parabola `y^2=8x` and the foot of perpendicular drawn from its focus to the tangents is a conic, then the length of latus rectum of this conic is `9/4` (b) 9 (c) 18 (d) `9/2`

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CENGAGE ENGLISH-CONIC SECTIONS-All Questions
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