Невласний інтеграл від необмеженої функції

New channel Олексій Василенко: title sample judged 'whole' (Consistent sequential higher-math lecture series (calculus, linear algebra, probability, complex analysis) with clear ed); 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.