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Let p be a variable
Let p be a variable pictures 5
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Let p be a
Let p be a variable
let pab) be a variable point satisfying
let p be a variable
let p be a variable point
let p be a variable point on the ellipse x^2/25+y^2/16u003d1
let p be a variable point on the ellipse x2/a2+y2/b2u003d1
let p be a variable point on the parabola
let p be a variable point on the ellipse
