uberathlete
New member
- Joined
- Jan 16, 2006
- Messages
- 48
Hi everyone. I'm having problems on how to integrate 2/(x^2+4) . I know the answer is arcsin(1/2x) + C, but I can't seem to get to that answer. I tried regular substitution, and integration by parts and they don't seem to work. I'm not so sure if trig substitution would work either. Any help on this would be greatly appreciated. Thanks!