PlanetMath (more info)
 Math for the people, by the people. Sponsor PlanetMath
Encyclopedia | Requests | Forums | Docs | Wiki | Random | RSS  
Login
create new user
name:
pass:
forget your password?
Main Menu
Owner confidence rating: Very high Entry average rating: No information on entry rating
[parent] general formulas for integration (Topic)
  1. $\ds \int f'(x)\,dx = f(x)+C$
  2. $\ds \int\lambda\,dx = \lambda x+C$
  3. $\ds \int\lambda f(x)\,dx = \lambda\int f(x)\,dx$
  4. $\ds \int(f(x)+g(x))\,dx = \int f(x)\,dx+\int g(x)\,dx$
  5. $\ds \int f(x)g'(x)\,dx = f(x)g(x)-\int g(x)f'(x)\,dx$
  6. $\ds \int g(f(x))f'(x)\,dx = G(f(x))+C$ if $G'(t) = g(t)$
  7. $\ds \int [f(x)]^rf'(x)\,dx = \frac{1}{r\!+\!1}[f(x)]^{r+1}+C$ for $r \neq -1$
  8. $\ds \int \frac{f'(x)}{f(x)}\,dx = \ln|f(x)|+C$
  9. $\ds \int e^{f(x)}f'(x)\,dx = e^{f(x)}+C$
  10. $\ds \int \!\frac{f(x)}{(f(x)\!+\!a)(f(x)\!+\!b)}\,dx \,=\, \frac{a}{a\!-\!b}\int\!\frac{dx}{f(x)\!+\!a}-\frac{b}{a\!-\!b}\int\!\frac{dx}{f(x)\!+\!b}$
  11. $\ds \int \sin(\omega x+\varphi)\,dx = -\frac{\cos(\omega x+\varphi)}{\omega}+C$
  12. $\ds \int \cos(\omega x+\varphi)\,dx = \frac{\sin(\omega x+\varphi)}{\omega}+C$
  13. $\ds \int \sinh(\omega x+\varphi)\,dx = \frac{\cosh(\omega x+\varphi)}{\omega}+C$
  14. $\ds \int \cosh(\omega x+\varphi)\,dx = \frac{\sinh(\omega x+\varphi)}{\omega}+C$
  15. $\ds \int \sqrt{ax\!+\!b}\;dx = \frac{2}{3a}(ax\!+\!b)\sqrt{ax\!+\!b}+C$
  16. $\ds \int \sqrt{ax^2\!+\!b}\;dx = \frac{x}{2}\sqrt{ax^2\!+\!b}+\frac{b}{2\sqrt{a}}\ln(x\sqrt{a}+\sqrt{ax^2\!+\!b})+C$
  17. $\displaystyle \int \sin^n x \cos^m x \, dx = -\frac{\sin^{n-1} x \cos^{m+1} x}{m+n} + \frac{n-1}{m+n} \int \sin^{n-2}x \cos^m x \, dx$
  18. $\displaystyle \int \sin^n x \cos^m x \, dx = \frac{\sin^{n+1} x \cos^{m-1} x}{m+n} + \frac{m-1}{m+n} \int \sin^n x \cos^{m-2} x \, dx$

Some series-formed antiderivatives:

$\ds \int f(x)\,dx = C+f(0)x+\frac{f'(0)}{2!}x^2+\frac{f''(0)}{3!}x^3+\ldots$
$\ds \int f(x)\,dx = C+xf(x)-\frac{x^2}{2!}f'(x)+\frac{x^3}{3!}f''(x)-+\ldots$
$\ds \int UV\,dx = UV^{(-1)}-U'V^{(-2)}+U''V^{(-3)}-+\ldots \;=\; \sum_{n=0}^\infty (-1)^n U^{(n)}V^{(-n-1)}$

The derivatives with negative order mean that $V$ has been integrated repeatedly.




Anyone with an account can edit this entry. Please help improve it!

"general formulas for integration" is owned by pahio. [ full author list (4) ]
(view preamble | get metadata)

View style:

See Also: table of derivatives, table of integrals, integration by parts, reduction formulas for integration of powers

Other names:  integration formulas
Keywords:  antiderivative

This object's parent.

Attachments:
reduction formulas (Definition) by curious
Log in to rate this entry.
(view current ratings)

Cross-references: negative, derivatives, antiderivatives
There are 3 references to this entry.

This is version 13 of general formulas for integration, born on 2007-12-04, modified 2008-12-21.
Object id is 10092, canonical name is GeneralFormulasForIntegration.
Accessed 3349 times total.

Classification:
AMS MSC26A36 (Real functions :: Functions of one variable :: Antidifferentiation)

Pending Errata and Addenda
None.
Discussion
Style: Expand: Order:
forum policy

No messages.

Interact
post | correct | update request | add example | add (any)