So'zlar, atamalar va tushunchalarning ma'nosi
KOSINUSOIDA — to’g’ri burchakli Dekart koordinatalari sistemasida >»=S08x funktsiyaning grafigi. Kosinusoida sinusoidaning huddi o’zi bo’lib, faqat Ox o’q bo’yicha -j masofaga chap tomonga surilgandir, chunki cosx=sin(x+ -^ ).