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Math Help - Derivative sinhx*tanhx

  1. #1
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    Derivative sinhx*tanhx

    When I calculate the derivative of

     <br />
y = sinh(x) tanh(x)<br />

    I come up with

     <br />
y' = cosh(x) tanh(x) + sinh(x) sech^2(x)<br />

    Should this be further simplified?
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  2. #2
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    cosh(x) \cdot tanh(x)=sinh(x)

    then take sinh(x) as a common factor ..
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  3. #3
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    So...

     <br />
y' = sinh(x)(1+sech^2(x))<br />

    Sorry, it has been a very long time since I have had to work these sorts of problems.
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  4. #4
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    Correct .
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