use #17 in the case 
Calculus
Lesson
45
Look-up
Method
Back to Dr. Nandor's Calculus Notes Page
Back to Dr. Nandor's Calculus Page
Find a form similar to what you are looking for (appendix D in our current book):
use #17 in the case
use #54 and #55 alternately until done
doesn't look like anything! Try rewriting:
still doesn't look quite right with trig
functions, but what if we try 
?
and now we can use #3 with 
.
Lots of trial and error involved!!!!