Class 12 double derivative parameteric function

array(10) { [0]=> object(stdClass)#4390 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "fcLSzH6oX9k" ["related_video_title"]=> string(62) "Class 12 second order derivative #class12secondorderderivative" ["posted_time"]=> string(21) "8 дней назад" ["channelName"]=> string(18) "Xplus mathematics " } [1]=> object(stdClass)#4363 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "RbcPeoi1EDU" ["related_video_title"]=> string(103) "🔴24/7 Worship Piano | Soaking CCM Instrumental for Prayer - Meditation Music|Piano Hymns|Rest in GOD" ["posted_time"]=> string(0) "" ["channelName"]=> string(16) "Moments of Selah" } [2]=> object(stdClass)#4388 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "2X1iIrjz7ug" ["related_video_title"]=> string(67) "Президент сбежал / Столица атакована" ["posted_time"]=> string(24) "15 часов назад" ["channelName"]=> string(10) "NEXTA Live" } [3]=> object(stdClass)#4395 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "kWRLInwDckU" ["related_video_title"]=> string(70) "FOURIER SERIES | ONE SHOT | ENGINEERING MATHEMATICS | PRADEEP GIRI SIR" ["posted_time"]=> string(27) "7 месяцев назад" ["channelName"]=> string(20) "Pradeep Giri Academy" } [4]=> object(stdClass)#4374 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "2bypOKHibyo" ["related_video_title"]=> string(51) "lo-fi radio🔴live beats to work\study– 24/7" ["posted_time"]=> string(0) "" ["channelName"]=> string(9) "Simplofi " } [5]=> object(stdClass)#4392 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "jf6Wc-MNLZc" ["related_video_title"]=> string(68) "Class 11 complex number (square root) #squarerootofcomplexnumbermath" ["posted_time"]=> string(24) "15 часов назад" ["channelName"]=> string(18) "Xplus mathematics " } [6]=> object(stdClass)#4387 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "zycRpArjzT8" ["related_video_title"]=> string(103) "Возможно ли Пройти НОВЫЙ Самый Сложный Мод в Майнкрафте?" ["posted_time"]=> string(19) "3 дня назад" ["channelName"]=> string(29) "Mud Flaps На Русском" } [7]=> object(stdClass)#4397 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "nWTLJP7BzAc" ["related_video_title"]=> string(95) "Трамп не пощадил лицо Зеленского на Большой Семерке" ["posted_time"]=> string(24) "18 часов назад" ["channelName"]=> string(27) "Анатолий Шарий" } [8]=> object(stdClass)#4373 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "DZIASl9q90s" ["related_video_title"]=> string(52) "Победи Неймара, Выиграй $500,000" ["posted_time"]=> string(25) "3 недели назад" ["channelName"]=> string(7) "MrBeast" } [9]=> object(stdClass)#4391 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "3rI7RoA1laM" ["related_video_title"]=> string(177) "ОСЕЧКИН: "Вот эти детали вам будут очень интересны". Какую цену заплатил Путин, ИРАН, Израиль, Киев" ["posted_time"]=> string(24) "17 часов назад" ["channelName"]=> string(24) "И Грянул Грэм" } }