Proposition 4.

Autor:Alla Stolyarevska

Proposition 4. The ratio of the distance between point M and the focus to the distance between point M and the directrix is equal to the eccentricity of the ellipse (a>b).

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Limaçons
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分數化百分數：練習
רישום חופשי

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rectangle
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Pendule de Newton
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Seno
Processo Estocástico ou Processo Aleatório
MMC e MDC
Circuncírcunferência ou Circunferência Circunscrita
Gráfico