https://t.me/matematika_aralov Murojaat uchun: @QuvonchAralov Instagram sahifamiz👇 https://instagram.com/matematika_aralov.q?igshid=YmMyMTA2M2Y= You tube sahifamiz👇 https://www.youtube.com/channel/UCXIE3sO6uhi7cLezXROgnoQ Telegram sahifamiz👇 https://t.me/matematika_aralov ru