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Apollonii Pergaei quae graece exstant cum ... - Wilbourhall.org

Apollonii Pergaei quae graece exstant cum ... - Wilbourhall.org

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EUTOCII COMMENTARIA IN CONICA. 193<br />

est et perpendicularis ; itaque AA = z/JT. similiter<br />

demonstrabimus, omnes rectas, <strong>quae</strong> a ^E uel z/B<br />

aequaliter distent, aequales esse. rursus quoniam<br />

trianguli ^EZ angulus ^EZ rectus est, erit z/Z> ^E<br />

[Eucl. I, 19]. et rursus quoniam EA > EZ^ quia etiam<br />

arcus EZA > EZ [Eucl. III, 29], et ^E communis<br />

est et perpendicularis, erit /iZ

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