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Math Help - 2 cosh^2 3x

  1. #1
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    2 cosh^2 3x

    what is this differentiated

    2 cosh^2 3x

    thanks
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by thrusterkel View Post
    what is this differentiated

    2 cosh^2 3x

    thanks
    note that \frac d{dx} \cosh u = u' \sinh u where u is a function of x

    use that fact along with the Chain rule and you'll have the answer

    try it and tell me what you get
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