Mathematics - Parabola Question with Solution | TestHub

MathematicsParabolaChordsMedium2 minQB

MathematicsMediumsingle choice

Length of the focal chord of the parabola $(y + 3)^{2} = - 8 (x - 1)$ which lies at a distance 2 units from the vertex of the parabola is

Answer:

Solution:

Lengths are invariant under change of axes consider $y^{2} = 8 x$ . Consider focal chord at ( $2 t^{2}, 4 t$ )

Stream:JEESubject:MathematicsTopic:ParabolaSubtopic:Chords

⏱ 2mℹ️ Source: QB

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