# Integral calculus question **URL:** \ **Category:** Uncategorized\ **Created:** [February 5, 2006, 6:21am UTC](https://forum.kirupa.com/t/integral-calculus-question/177786 "2006-02-05T06:21:57Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![kdd](https://avatars.discourse-cdn.com/v4/letter/k/ecb155/32.png) [@kdd](https://forum.kirupa.com/u/kdd)\ **Post date:** [February 5, 2006, 6:21am UTC](https://forum.kirupa.com/t/integral-calculus-question/177786/1 "2006-02-05T06:21:57Z")
so i was integrating an equation and got some answer. i checked it on integrator, and got a different answer. now my question is, can one equation have two different results? the problem: (Cos[x])^2 \* Sin[2x] [http://integrals.wolfram.com/index.jsp](http://integrals.wolfram.com/index.jsp) - the website i put to get an answer. 2 (Sin[x])^2 - (Sin[x])^4 + C is what i got. :nerd: