on [0, pi/3]. i don't know how to get this one going. the book says to use substitution before integration by parts, but i don't see what to substitute. i tried for but i didn't get anywhere.
on [0, pi/3]. i don't know how to get this one going. the book says to use substitution before integration by parts, but i don't see what to substitute. i tried for but i didn't get anywhere.
It should be
The integral would become
The first integral can then be done by parts, with and
on [0, pi/3]. i don't know how to get this one going. the book says to use substitution before integration by parts, but i don't see what to substitute. i tried for but i didn't get anywhere.
Substitute . Then your integral becomes .
Now use integration by parts on the first integral: and .