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Trigonometria Artificialis (1633)

Vlacq · leaf 35

An illustration from Trigonometria Artificialis, 1633, leaf 35
effe interXE,CL. Sunt enim anguli EXO, CYT,GKL asqua-les perzo.Prop.^. Etanguliad O ScL redi. Suntigitur Triangula X E O, K C L fimilia, & X E,EO; K C, CL pioportiouales. Quod erat de-monitrandum. Confeciarium. Si Triangulum E G Y circulo infcribatur, & abanguloquolibet E C Y… … PROPOSITIO. In Triangulis Spn^ricis univerfis quibus notafunt latera, erunt ( JRettcmgulum e Sinubus Laterum Angulum verticalem comprehendentium.•T \Òuadmtum Radii. \/yReftangulum e Sinubus Jìmifummar-.#[emidifferentix Bajìs & differen-te ) tite Crurum» KQwdratum Sinus[emijjìs Anguli…

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