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Math Help - Integral4

  1. #1
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    Integral4

    Calculate:




    \int \sqrt{25x^2-16}dx
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by Apprentice123 View Post
    Calculate:




    \int \sqrt{25x^2-16}dx
    another trig sub

    try x = \frac 45 \sec \theta
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  3. #3
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    thanks
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  4. #4
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    Answer

    Check the attachment for solution
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