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Math Help - Calc trig help

  1. #1
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    Calc trig help

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  2. #2
    MHF Contributor
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    Just split interval [0 ; \pi] in \left[0 ; \frac{\pi}{2}\right] and \left[\frac{\pi}{2} ; \pi\right] where the sign of cos is constant
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  3. #3
    Member
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    Dec 2008
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    Split the absolute value cosx into...

    cosx from (0,pi/2)

    -cosx from (pi/2, pi)

    into separate integrals

    Then have fun integrating.
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