Chỉ ra công thức sai trong các công thức nguyên hàm sau:
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Lời giải:
Báo sai\(% MathType!MTEF!2!1!+- % feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaWaa8qaaeaaci % GGJbGaai4BaiaacohacaWG4bGaaeizaiaadIhaaSqabeqaniabgUIi % YdGccqGH9aqpciGGZbGaaiyAaiaac6gacaWG4bGaey4kaSIaam4qaa % aa!4431! \int {\cos x{\rm{d}}x} = \sin x + C\) sai, công thức đúng là \(% MathType!MTEF!2!1!+- % feaahqart1ev3aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaWaa8qaaeaada % WcaaqaaiaaigdaaeaaciGGZbGaaiyAaiaac6gadaahaaWcbeqaaiaa % ikdaaaGccaWG4baaaiaadsgacaqG4baaleqabeqdcqGHRiI8aOGaey % ypa0JaeyOeI0Iaci4yaiaac+gacaGG0bGaaeiEaiabgUcaRiaadoea % aaa!46DB! \int {\frac{1}{{{{\sin }^2}x}}d{\rm{x}}} = - \cot {\rm{x}} + C\)