anonymous
  • anonymous
Evaluate:
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
evaluated!
anonymous
  • anonymous
\[\int\limits_{1}^{2} (7 - 2/x + 7/x^3) dx\]
anonymous
  • anonymous
will I find u and du with this problem

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anonymous
  • anonymous
This one integrate term by term.
anonymous
  • anonymous
\[7x - 2\ln|x| - 7/4x ^{4}\] evaluated at x = 2 and subtract off what you get when you evaluate at x = 1.
anonymous
  • anonymous
will it better to bring the x on top ex. 2/x to 2x^-1
anonymous
  • anonymous
7x−2ln|x|−7x^-2 /-2 =7x−2ln|x|−7+7/2 x^2
anonymous
  • 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
anonymous
  • anonymous
Just put the integral sign in fron of each term and integrate term by term. No confusion.
anonymous
  • anonymous
easy to say if you understand it. where did the -7 come from then +7/2x^2
anonymous
  • 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.

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