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Math Help - Integration...Getting wrong answer

  1. #1
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    Integration...Getting wrong answer

    Is this answer wrong:


    My HW is not accepting it..
    Attached Thumbnails Attached Thumbnails Integration...Getting wrong answer-4.png  
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  2. #2
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    I don't see anything wrong with it. Once you do the u-substitution u=\sqrt{x} to obtain 50\int sin^3(u)du it's obviously just a matter of integrating sin^3(u)du which can be done using the reduction formula for powers of sine. The integral calculator used the correct formula. Perhaps you forgot to include the constant of integration?
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  3. #3
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    Does your HW accept this ?

     \frac{50}{3} \left[ \cos^3(\sqrt{x} ) - 3 \cos(\sqrt{x} ) \right] + C
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  4. #4
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    thanks...it didnt accepted with square brackets but it did accepted parenthesis..
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