Limiti notevoli (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15) (16) (17) (18) sin x =1 x→0 x tan x lim =1 x→0 x 1 − cos x 1 lim = 2 x→0 x 2 sinh x =1 lim x→0 x tanh x lim =1 x→0 x 1 cosh x − 1 = lim 2 x→0 x n 2 1 lim 1 + =e n→∞ n x 1 1 = e, lim (1 + x) x = e lim 1 + x→0 x→∞ x x t lim 1 + = et , t∈R x→∞ x ln(1 + x) lim =1 x→0 x ln x =1 lim x→1 x − 1 loga (1 + x) 1 lim = , a > 0, a 6= 1 x→0 x ln a ex − 1 lim =1 x→0 x ax − 1 lim = ln a, a > 0, a 6= 1 x→0 x x e lim = 0, ∀ α > 0 x→+∞ xα loga x loga x lim = 0+ , ∀α > 0 se a > 1; lim = 0− , α x→+∞ x x→+∞ xα lim xα ax = 0, ∀α > 0, 0 < a < 1; lim (−x)α ax = 0, lim x→+∞ lim+ xα loga x = 0− , ∀α > 0 se 0 < a < 1 x→−∞ ∀α > 0 se a > 1; lim+ xα loga x = 0+ , x→0 x→0 1 ∀α > 0, a > 1 ∀α > 0 se 0 < a < 1