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CALCOLO DEGLI INTEGRALI
Integrazioni immediate
α 1
+
1
x { } ∫ = +
∫ α
α dx log x C
∈ − −
= + con R 1
x dx C x
α + 1 ( )
[ ]
( ) ′
f x
α +
1 ( )
f x ∫
[ ]
( ) ( ) = +
∫ dx log f x C
α ′ = +
f x f x dx C ( )
f x
α + 1
∫ ∫
= + = − +
cos xdx sin x C sin xdx cos x C
∫ ∫
= + = +
cosh xdx sinh x C sinh xdx cosh x C
1 1
∫ ∫
= + = − +
dx tan x C dx cot x C
2 2
cos x sin x
( ( ) ) ( ) ( ( ) )
∫ ′ = +
f g x g x dx F g x C
( ) ( ) ( ) ( ) ( ) ( )
∫ ∫
′ ′
= + = − +
cos f x f x dx sin f x C sin f x f x dx cos f x C
( ) ( )
′ ′
f x f x
( ) ( )
∫ ∫
= + = − +
dx tan f x C dx cot f x C
( ) ( )
2 2
cos f x sin f x
( )
′
f x
1 ( )
∫ ∫
= + = +
dx arcsin x C dx arcsin f x C
(-arccos) (-arccos)
( )
− 2 2
1 x −
1 f x
( )
′
1 f x ( )
∫ ∫
= + = +
dx arctan x C dx arctan f x C
(-arccot) (-arccot)
[ ]
( )
+ 2
1 x 2
+
1 f x
( ) ( )
′
1 1 x f x 1 f x
∫ ∫ ( ( ) )
= + = +
dx arctan C dx arctan C = +
f x x k
[ ]
( )
+
2 2 m m
x m 2 + m m
2
f x m
( )
( ) ( )
∫
∫ ′ = +
= +
x x f x f x
e f x dx e C
e dx e C ( )
x f x
a a
( )
( )
∫ ∫ ′
= + = +
x f x
a dx C a f x dx C
log a log a
( ) ( ) ( ) ( ) ( ) ( )
∫ ∫
′ ′
⋅ = ⋅ − ⋅
f x g x dx f x g x g x f x dx
Integrazione per parti
( )
( )
( ( ) ) ( ) ( )
∫ ∫ ′
′ =
⋅ = = dt g x dx
f g x g x dx f t dt g x t
Integrazione per sostituzione ,
Integrazioni delle funzioni razionali