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anonymous

  • one year ago

How to integrate 3 functions?

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  1. anonymous
    • one year ago
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    Find \[\int\limits_{}^{} (-11e^{-t^{3}} * (\sin(x))^{4} d/dx) d/dx\]

  2. anonymous
    • one year ago
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    Oops It's -11e^x^3

  3. anonymous
    • one year ago
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    But I did find the derivative inside the integral which is... \[-44e^{-t^{3}} \sin^{3} x \cos(x)\]

  4. anonymous
    • one year ago
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    And then when you simplify, you get... \[-44 \int\limits_{}^{} e^{-x^{3}} \sin^{3} x \cos x dx\]

  5. anonymous
    • one year ago
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    ^This is the step I'm stuck on...

  6. ganeshie8
    • one year ago
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    Hey take a screenshot of actual problem and attach if psble

  7. anonymous
    • one year ago
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    Sure!

  8. IrishBoy123
    • one year ago
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    you are integrating a derivative here.

  9. anonymous
    • one year ago
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    Yes but when you see my work above ^ we end up with 3 functions inside the integral! :)

  10. ganeshie8
    • one year ago
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    don't you see the integral and derivative kill each other out leaving you with the function inside so you don't have to do any work

  11. ganeshie8
    • one year ago
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    |dw:1436011182130:dw|

  12. anonymous
    • one year ago
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    O. I feel really stupid xD

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