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If the tangent at the point P(2, 4) to the parabola y2=8x meets the parabola y2=8x+5 at Q and R,then the midpoint of QR is |
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Answer» If the tangent at the point P(2, 4) to the parabola y2=8x meets the parabola y2=8x+5 at Q and R, |
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