G‘afforova Xosiyat Umar qizi. TRIGONOMETRIK TENGLAMASIZLIKLARNI YECHISHDA GRAFIK USULINING AFZALLIKLARI VA QULAYLIKLARI . journal. 2026;89(1):121-125. Accessed July 21, 2026. https://journalss.org/index.php/tad/article/view/35122