Đạo hàm của hàm số \(% MathType!MTEF!2!1!+- % feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaamyEaiabg2 % da9iaaikdaciGGZbGaaiyAaiaac6gadaahaaWcbeqaaiaaikdaaaGc % caWG4bGaeyOeI0Iaci4yaiaac+gacaGGZbGaaGOmaiaadIhacqGHRa % WkcaWG4baaaa!44D3! y = 2{\sin ^2}x - \cos 2x + x\) là
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Lời giải:
Báo sai\(% MathType!MTEF!2!1!+- % feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGabmyEayaafa % Gaeyypa0JaaGinaiGacohacaGGPbGaaiOBaiaadIhaciGGJbGaai4B % aiaacohacaWG4bGaey4kaSIaaGOmaiGacohacaGGPbGaaiOBaiaaik % dacaWG4bGaey4kaSIaaGymaiabg2da9iaaisdaciGGZbGaaiyAaiaa % c6gacaaIYaGaamiEaiabgUcaRiaaigdaaaa!5024! y' = 4\sin x\cos x + 2\sin 2x + 1 = 4\sin 2x + 1\)