1 or x2

  1. C

    How do you integrate (-infinity to 5) 1/(x^2+1)dx?

    When I integrate int (-infinity to 5) 1/(x^2+1)dx by using the limit as t --> -infinity of int (t to 5) 1/(x^2+1)dx, I get negative infinity, which means it is DIVERGENT. (antiderivative of 1/(x^2+1) is arctan x, right? and since arctan t as t--> -infinity is -infinity, I get divergent) But...
  2. W

    The Integral from -infinity to 2 of 1/(x^2+1) dx Cal 2 Help ?

    Thanks for all your help!
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