[위례솔수학] 실력정석 대수 15강 수열의 합 개념설명2(250516)

array(10) { [0]=> object(stdClass)#4422 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "jeYA9elnJNM" ["related_video_title"]=> string(85) "[위례솔수학] 실력정석 대수 16강 수학적 귀납법 질문해결1(250530)" ["posted_time"]=> string(25) "2 недели назад" ["channelName"]=> string(11) "박현철TV" } [1]=> object(stdClass)#4395 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "iSbZkqr4jhA" ["related_video_title"]=> string(88) "[2026학년도 대비] 고3 [6월모의고사] 공통 13, 14, 15, 21, 22번 해설강의" ["posted_time"]=> string(22) "13 дней назад" ["channelName"]=> string(23) "수학 잔소리 설쌤" } [2]=> object(stdClass)#4420 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "QcyI8R20JR0" ["related_video_title"]=> string(60) "46. 이차방정식과 이차함수의 관계 - 개념정리" ["posted_time"]=> string(19) "7 лет назад" ["channelName"]=> string(12) "수악중독" } [3]=> object(stdClass)#4427 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "1ttDKKu0uv4" ["related_video_title"]=> string(59) "[17회차 개념] 이차방정식과 이차함수의 관계" ["posted_time"]=> string(19) "5 лет назад" ["channelName"]=> string(16) "EBSi임재석쌤" } [4]=> object(stdClass)#4406 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "QQMEDgMJe14" ["related_video_title"]=> string(26) "제4-1강. 유리함수(1)" ["posted_time"]=> string(19) "5 лет назад" ["channelName"]=> string(16) "EBSi임재석쌤" } [5]=> object(stdClass)#4424 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "Fgm5umQsHxM" ["related_video_title"]=> string(119) "※13분 순삭※ 인수분해의 세계에 오신 걸 환영합니다 I 완포자를 위한 정승제의 수학개념" ["posted_time"]=> string(21) "2 года назад" ["channelName"]=> string(5) "EBSi " } [6]=> object(stdClass)#4419 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "lOwZca0CHUA" ["related_video_title"]=> string(74) "[위례솔수학] 쎈 공통수학1 행렬의 연산 질문해결2(250613)" ["posted_time"]=> string(21) "7 дней назад" ["channelName"]=> string(11) "박현철TV" } [7]=> object(stdClass)#4429 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "Qe4fCFbQynQ" ["related_video_title"]=> string(118) "ГРОБОВАЯ ЗАДАЧА ИЗ ЯНДЕКСА! | БЕСКОНЕЧНАЯ СУММА ЧИСЕЛ ФИБОНАЧЧИ??" ["posted_time"]=> string(22) "12 дней назад" ["channelName"]=> string(35) "Профиматика.Вышмат" } [8]=> object(stdClass)#4405 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "95Mkwbsk2HQ" ["related_video_title"]=> string(79) "Можно ли поменять родину так быстро? / вДудь" ["posted_time"]=> string(21) "1 день назад" ["channelName"]=> string(10) "вДудь" } [9]=> object(stdClass)#4423 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "FkhDoFzlY-o" ["related_video_title"]=> string(177) "Депутату не выключили микрофон и страна услышала правду! Вот что ждёт страну, мы за 25 лет всё про.." ["posted_time"]=> string(21) "4 часа назад" ["channelName"]=> string(23) "Антон Хардин" } }