Can you help me.
integral from 4 to 1
integral from pie to pie/4
integral from 4 to x
This one is easy. Just split up the fraction and use the properties of exponents to rewrite each term as a power of
Well, what is the derivative of the secant? That should make the answer to this one obvious.
Substitute and then note that
This has no elementary antiderivative. Did you write it correctly?
Rewrite, using the identity
You should be able to take it from here.