I am having problems on the following problem:
The answer I came up with is this:
My Homework is saying it's wrong though, can someone tell me why this is wrong.
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Go through the formula for integration by part.
I just went through it again, and came up with the same answer.
integrat 4x*sin(x)dx - Wolfram|Alpha
Go to this site. Be sure to click "show steps"
Thanks for your help, great site too!