Sorry, this entry is only available in O`zbek.
(O`zbek) Mavzu: To’g’ri chiziqning turli tenglamalari. Ikki to’g’ri chiziq orasidagi burchak. Ikkita to’g’ri chiziqning parallelligi va perpendikulyarligi shartlari
Sorry, this entry is only available in O`zbek.
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