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Math Help - Antiderivatives. Did I do it right?

  1. #1
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    Antiderivatives. Did I do it right?

    Find the following.
    ∫ (56t^(5/2) + 18t^(7/2))dt.
    I did
    (2/7)56 t^(7/2) + (2/9)18t^(9/2) + c =
    16t^(7/2) + 4t^(9/2) + c
    Wolfram gives me a different answer.
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  2. #2
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    Quote Originally Posted by rowdy3 View Post
    Find the following.
    ∫ (56t^(5/2) + 18t^(7/2))dt.
    I did
    (2/7)56 t^(7/2) + (2/9)18t^(9/2) + c =
    16t^(7/2) + 4t^(9/2) + c
    Wolfram gives me a different answer.
    WolframAlpha gave me [4t^(7/2)](t+4)+constant, which is equivalent to your answer.
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  3. #3
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    Quote Originally Posted by rowdy3 View Post
    Find the following.
    ∫ (56t^(5/2) + 18t^(7/2))dt.
    I did
    (2/7)56 t^(7/2) + (2/9)18t^(9/2) + c =
    16t^(7/2) + 4t^(9/2) + c
    Wolfram gives me a different answer.
    factor your antiderivative
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