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Math Help - Calculate f'(x)

  1. #16
    MHF Contributor Unknown008's Avatar
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    Like this:

    =e^{3x}\left(\dfrac{1}{cos^2x}+3tgx\right)

    Factoring and differentiating are different verbs
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  2. #17
    Lil
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    I'm awful at math and my English is bad too . Thanks for help.
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  3. #18
    A Plied Mathematician
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    You're very welcome for my contributions.
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  4. #19
    A Plied Mathematician
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    If you're taking calculus, I wouldn't say you're all that terrible at math. A majority of people in the USA, at least, never take calculus, unfortunately.
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  5. #20
    Lil
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    f(x)=e^{2\sqrt{x}}
    f'(x)=(e^{2\sqrt{x}})'= (e^{2\sqrt{x}})' \cdot (2\sqrt{x})'= e^{2\sqrt{x}}\cdot \frac{1}{\sqrt{x}}= \frac{e^{2\sqrt{x}}}{\sqrt{x}}<br />

    I do it myself, so it's correct?
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  6. #21
    A Plied Mathematician
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    Looks good to me. However, I would recommend not introducing a new problem this far into a thread. It won't get the visibility that a new thread will.
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  7. #22
    Lil
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    I know that...
    Anyway, I'm so happy that I understood this task.
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  8. #23
    A Plied Mathematician
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    Ok. Have a good one!
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  9. #24
    MHF Contributor Unknown008's Avatar
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    Correct!

    EDIT: Oops, way way way too late =S
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