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Math Help - [SOLVED] Evaluating the indefinite integral..need help

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    [SOLVED] Evaluating the indefinite integral..need help

    Evaluate the indefinite integral



    Is this solution is correct, if not then suggests some hints.

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  2. #2
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    Thats one hell of an integral, but according to wolfram, that solution is correct.

    http://integrals.wolfram.com/index.jsp?expr=%289%2Btan%28x%29%29^7*sec%28x%29^2 &random=false
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    Will the answer change if I replace x with Θ
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    No. It whatever your limit's of integration are that define the end resulting value of the function
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    Quote Originally Posted by racewithferrari View Post
    Evaluate the indefinite integral



    Is this solution is correct, if not then suggests some hints.

    u = 9 + \tan{x}

    du = \sec^2{x} \, dx

    \int u^7 \, du

    \frac{u^8}{8} + C

    \frac{(9 + \tan{x})^8}{8} + C<br />
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