Integration Tables

  • Thread starter Xkaliber
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  • #1
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Does anyone know of any online integration tables that are fairly robust?

I need to know how to integrate [tex]\int x sin(ax) sin(bx) dx[/tex]
 

Answers and Replies

  • #2
Office_Shredder
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integrals.wolfram.com/index.jsp doesn't work?

EDIT: Lol.... I forgot how it bungles trig... it probably gives a right answer, but it's not the one you want
 
  • #3
59
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The calculator gave me [tex]\frac{1}{2}(\frac{cos((a-b)x)}{(a-b)^2}-\frac{cos((a+b)x)}{(a+b)^2}+\frac{xsin((a-b)x)}{(a-b)}-\frac{xsin((a+b)x)}{(a+b)})[/tex]

Is this correct?
 

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