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Math Help - solving definate integrals

  1. #1
    Senior Member polymerase's Avatar
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    solving definate integrals

    Suppose i solved the integral (correctly) and i get as my answer \arctan({\tan{x}}) and i want the area from 0 to \pi...how do I solve that, what do i do to get around the 0-0??

    thanks
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  2. #2
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    Hello, polymerase!


    Note that: . \arctan(\tan x) \:=\:x

    Also that: . \arctan 0 \:=\:0,\:\pm\pi,\:\pm2\pi,\:\hdots


    What was the original integral?
    It must have been equivalent to: . \int 1\,dx

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