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Math Help - Checking over a long answer :S

  1. #1
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    Checking over a long answer :S

    Hi guys, I had 2 attempts at this answer before it's locked out and I can't earn marks. I've already used up the first and I'm ready to submit again but I'm wondering if anyone can confirm that this answer works. Thanks

    find dy/dx of



    my answer is:




    thanks again
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  2. #2
    MHF Contributor harish21's Avatar
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  3. #3
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    I see your point. Thanks anyway

    Well I got it wrong haha... to be honest I really thought I had gotten it right. I first used the lnx = 1/x rule then I timed it by the derivative of the "x" term within ln(x) by using the quotient rule and then the product rule within the quotient rule to find the results. after simplifying I was sure it was right. Maybe I didn't simplify right...
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