Thread: I have no idea how to find this reduction formula

The integral is in the attached file (as #35) and the book wants me to prove that that equality is correct. First of all, is "a" a constant or a variable? Furthermore, I assume that n is a constant as well.

What am I doing wrong? (My work is attached along with the question)

Any help would be greatly appreciated!
Thanks in advance!

Originally Posted by s3a

The integral is in the attached file (as #35) and the book wants me to prove that that equality is correct. First of all, is "a" a constant or a variable? Furthermore, I assume that n is a constant as well.

What am I doing wrong? (My work is attached along with the question)

Any help would be greatly appreciated!
Thanks in advance!

Try



Then use integration by parts.