Evaluate:

Question

Evaluate:

anonymous · Answer

evaluated!

anonymous · Answer

$$\int\limits_{1}^{2} (7 - 2/x + 7/x^3) dx$$

anonymous · Answer

will I find u and du with this problem

anonymous · Answer

This one integrate term by term.

anonymous · Answer

$$7x - 2\ln|x| - 7/4x ^{4}$$ evaluated at x = 2 and subtract off what you get when you evaluate at x = 1.

anonymous · Answer

will it better to bring the x on top  ex. 2/x  to 2x^-1

anonymous · Answer

7x−2ln|x|−7x^-2 /-2
=7x−2ln|x|−7+7/2 x^2

anonymous · Answer

now I am confussed. I am having alot of trouble with these problems. When I look at them I do not know where to start.
I do not know what to do next

anonymous · Answer

Just put the integral sign in fron of each term and integrate term by term. No confusion.

anonymous · Answer

easy to say if you understand it.
where did the -7 come from then +7/2x^2

anonymous · Answer

The last item $$(7 \ x ^{3}) $$ is on the bottom. By convention you rewrite it $$7x ^{-3}$$. When you integrate that you would get a negative term.