Integral of cos(ln(x)) dx

Hopefully you enjoyed the video! Feel free to comment any requests you want me to do :)
Thank you so much for watching (and reading this section)

[@Ken_griffin1963]

Random question, but what do you plan to do after uni? Is there a specfic job you are looking for? I assume you love math so would you work in academia?

[@noakidoesmaths]

not too sure haha. im still doing my bachelor's degree but i'm looking to get into postgrad next year! maybe ill become a professor but the future is truly unpredictable.

[@badblaubi9612]

You could just start by integrating by parts in the first step: 1*cos(ln(x)). Integrate the 1 and derive the cos(ln(x)). This way the x cancels with the chain of cos(ln(x)) (which would be 1/x). Do it once more und you end up with the result

[@noakidoesmaths]

totally! that is certainly another valid method in approaching this problem. i shouldve included it as part of my solution. thanks for pointing it out!