integrals.wolfram.com Use one of Mathematica's 2500+ functions FREE online

Try anything in Wolfram|Alpha, not just integrals... derivatives, equations, plots, and more. (even gives full steps for doing many integrals)

Wolfram Mathematica Student Edition -- as low as $44.95.

Video: Beyond the Integrator

Wolfram Mathematica Online Integrator

The world's only full-power integration solver

-Sqrt[1 - x^2] + x*ArcCos[x]

Integrate[ArcCos[x], x] ==

           2
-Sqrt[1 - x ] + x ArcCos[x]

Time to compute: 0.01 second

: ArcCos[x]: inverse cosine [properties]

Spread the word: