5.4. Función derivada. Cálculo de derivadas 186 DERIVADAS DE FUNCIONES ELEMENTALES Función Derivada Función Derivada C 0 f (x) + g(x) f ′ (x) + g′ (x) x 1 c · f (x) c · f ′ (x) 1 x −1 x2 1 f (x) − f ′ (x) f (x)2 √ x 1 √ 2 x xn nxn−1 ( f (x))n n( f (x))n−1 · f ′ (x) ex ex e f (x) e f (x) · f ′ (x) ax ax · ln a a f (x) ln a · a f (x) · f ′ (x) ln x 1 x ln f (x) f ′ (x) f (x) sen x cos x sen( f (x)) cos( f (x)) · f ′ (x) cos x − sen x cos( f (x)) − sen( f (x)) · f ′ (x) tg x 1 cos2 x tg( f (x)) f ′ (x) cos2 ( f (x)) arc sen x √ 1 1−x2 arc sen( f (x)) √f arc cos x √−1 1−x2 arc cos( f (x)) √− f arc tg x 1 1+x2 arc tg( f (x)) f ′ (x) 1+ f (x)2 f (x) · g(x) f ′ (x) · g(x) + f (x) · g′ (x) i h ′ (x) f (x)g(x) g′ (x) ln f (x) + g(x) ff (x) f (x) g(x) f ′ (x)·g(x)− f (x)·g′ (x) (g(x))2 f (x)g(x) p f (x) ′ 2 f (x) √ f (x) ′ (x) 1− f (x)2 ′ (x) 1− f (x)2