Limit Fungsi Berdasarkan Kriteria Kekonverganan Barisan

New channel Anwar Mutaqin: title sample judged 'pick' (Mostly genuine university-level math lectures and worked problem sessions, but a handful of personal/vlog clips (e.g. 'I); passed a second screen for sellers/exam-prep/re-uploads; 0 of 3 sampled transcripts showed teaching, 0 not; titles picked one by one, checked strictly; oEmbed verified.