## anonymous 5 years ago Evaluate:

1. anonymous

evaluated!

2. anonymous

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

3. anonymous

will I find u and du with this problem

4. anonymous

This one integrate term by term.

5. anonymous

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

6. anonymous

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

7. anonymous

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

8. anonymous

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

9. anonymous

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

10. anonymous

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

11. anonymous

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.