Evaluating the integral

[souljah]

I tried integrating this on my own but couldn't get the correct answer .Any help is much appreciated :smile:

Evaluating the integral  sin sin x sin 2x dx.

 

[stapel]

Evaluating the integral  sin sin x sin 2x dx.

I'm sorry, but whatever special characters you're using in front of the sines is not displaying. Also, the arguments of your sines are not clear. Kindly please reply, using standard formatting, with clarification.

I tried integrating this on my own...

Great! When you reply with the requested information, kindly please also include a clear listing of your thoughts and efforts so far. Thank you!