TEOREMAI SINUSHO

TEOREMAI SINUSHO, 1) dar trigonometriyai hamvor, teoremaest, ki tanosubi bayni tarafhoi sekunjai dilkhoh va sinushoi kunjhoi muqobilro muqarrar menamoyad. Manoi teorema az barobarii

barmeoyad, ki in jo a, b, s — tarafho, A, V, S — kunji muqobili muvofiq, R — radiusi davrai beruntasvir. 2) Dar trigonometriyai sferavi, teoremaest, ki manoi on ba vositai barobarihoi

ifoda meyobad. In jo R — radiusi sfera. Hangomi R = 1 budan teorema in tavr bayon karda meshavad: sinusi tarafhoi sekunjai sferavi ba sinusi kunjhoi muqobil mutanosiband. Agar yake az kunjhoi sekunjai sferavi, masalan, A, kunji rost boshad, az formulahoi dar bolo zikrshuda paydo meshavand:

Teoremai sinushoro baroi sekunjai sferavi riyozidonon va munajjimoni Sharq Ibni Iroq, Abulvafoi Buzajoni va Abumaumudi Khujandi qarib dar yak vaqt kashf kardand.

Sh. Nuriddinov.