SOLUTION: I am getting stuck please show steps Evaluate the intergral x cos 15x dx

SOLUTION: I am getting stuck please show steps Evaluate the intergral x cos 15x dx

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Question 878244: I am getting stuck please show steps
Evaluate the intergral
x cos 15x dx
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Use integration by parts,

Let

Then,

So then,

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