Hàm số \(% MathType!MTEF!2!1!+- % feaahqart1ev3aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamyEaiabg2 % da9maalaaabaGaaGymaaqaaiaaikdaaaGaci4yaiaac+gacaGG0bGa % amiEamaaCaaaleqabaGaaGOmaaaaaaa!3E39! y = \frac{1}{2}\cot {x^2}\) có đạo hàm là:
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Lời giải:
Báo sai\(% MathType!MTEF!2!1!+- % feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaaeaaaaaaaaa8 % qaceWG5bGbauaacqGH9aqpcqGHsisldaWcaaqaaiaaigdaaeaacaaI % YaaaamaalaaabaWaaeWaaeaacaWG4bWaaWbaaSqabeaacaaIYaaaaa % GccaGLOaGaayzkaaWaaWbaaSqabeaakiadacUHYaIOaaaabaGaci4C % aiaacMgacaGGUbWaaWbaaSqabeaacaaIYaaaaOGaamiEamaaCaaale % qabaGaaGOmaaaaaaGccqGH9aqpcqGHsisldaWcaaqaaiaadIhaaeaa % ciGGZbGaaiyAaiaac6gadaahaaWcbeqaaiaaikdaaaGccaWG4bWaaW % baaSqabeaacaaIYaaaaaaaaaa!4FAB! y' = - \frac{1}{2}\frac{{{{\left( {{x^2}} \right)}^\prime }}}{{{{\sin }^2}{x^2}}} = - \frac{x}{{{{\sin }^2}{x^2}}}\)