integral 0 to infinite (x^ 3)(e^-8x) cos(5x) dx
should I do integrate by part?
Last edited by CaptainBlack; October 23rd 2010 at 12:36 AM.
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Please use brackets.
Or is it:
1st one. ! thanks. how did you do it?
To type equations like I did, you use LaTeX to do it. LaTeX Tutorial.
Yes, you would use integration by parts. For the part you would also need to use integration by u-substitution as well as integration by parts.
Originally Posted by ddcamp integral 0 to infinite (x^ 3)(e^-8x) cos(5x) dx
should I do integrate by part? do you have to find the actual value of the improper definite integral, or do you just have to show that it converges?
I have to find the actual value :S :S thanks!
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