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amyna

  • one year ago

integration problem. I will draw it on the board. Please help!! I just don't understand how to get the other interval since its an absolute value problem- everything else i understand! THANKS

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  1. amyna
    • one year ago
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    |dw:1437334447168:dw|

  2. amyna
    • one year ago
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    like what would the next interval be after pi and -pi over 2??

  3. phi
    • one year ago
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    cos is >=0 from -pi/2 to pi/2 so you can drop the | | for that inteval for pi/2 to pi cos is neg, so drop the | | and put in a -1 i.e. \[ \int_{\frac{\pi}{2}}^\pi - \cos x \ dx \]

  4. amistre64
    • one year ago
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    |dw:1437337222962:dw| due to its symmetry, the interval in question is just 3, times the integral of cos(x) from 0 to pi/2

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