# math 4 14

x a b f x ∑ x=a b f⁡x x x B f x ∑ x∈B f⁡x B f ∑B f i 0 100 x i sum integer_interval 0 100 lambda i power x i x a b f x ∏ x=a b f⁡x x x B f x ∏ x∈B f⁡x i 0 100 x i product integer_interval 0 100 lambda i power x i x 0 x lim x→0 sin⁡x x x 0 x lim x→0 sin⁡x x x a x lim x→a+ sin⁡x x x 0 expression-in-x limit 0 null lambda x expression-in-x x 2 a 2 x 2 → a 2+ x y f x y g x y x y → f⁡x y g⁡x y tendsto x sin⁡x x x 3 sin ⁡ ( cos⁡x + x 3 ) x arcsin ⁡ x sin-1 ⁡ x x sinh⁡x x arcsinh ⁡ x sinh-1 ⁡ x x e x a ln⁡a 3 x log 3⁡x x log⁡x 2 x y plus log 2 x log 10 y 3 4 3 7 4 ⟨ 3,4,3 ,7,4 ⟩ X ⟨X⟩ X¯ 3 4 2 2 σ ⁡ 3 4 2 2 X σ⁡X