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Q)

focal distance of a point on the parabola y^2=12x if the ordinate is 6

focal distance of a point on the parabola y^2=12x if the ordinate is 6

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A)
Given equation of the parabola is y2=12x.
Comparing this with the general equation of the parabola y2=4ax.
4ax=12x
⇒a=3
∴y2=12×3
⇒y2=36
∴y=±6 and x=4
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