Find the following indefinite integral, identifying any rules of calculus that you use:
I think I need to use integration by substitution, so have rearranged to give:
I am not quite sure what to do next. The formula I have for integration by substitution is:
, where u = g(x)
Would I then get
g(x) = , so u = -cosx
or do I need to integrate both parts first as they are both composite integrals and then use the above formula on the answers I get?
Thanks for any help in advence