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Normal drawn at P(t), having negative or...

Normal drawn at `P(t),` having negative ordinate, to parabola `y^2=16 x` meets the curve again at `Q(t_2)dot` If `t_2` is least then length PQ is 24 (2) `24sqrt(2)` `24sqrt(3)` (4) `16sqrt(3)`

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Normal drawn at P(t), having negative ordinate,to parabola y^(2)=16x meets the curve again at Q(t_(2)). If t_(2) is least then length PQ is 24(2)24sqrt(2)24sqrt(3)(4) (4) 16sqrt(3)

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