anonymous
  • anonymous
Need help finding the derivative of f(x)=(e^4x)/(8x+4)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
|dw:1442905786638:dw|
anonymous
  • anonymous
i hope that is correct so far..
anonymous
  • anonymous
i end up with the wrong answer

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FireKat97
  • FireKat97
Yup, that looks good so far!
FireKat97
  • FireKat97
Try and simplify it and show me what you get
anonymous
  • anonymous
ok. when i simplify i get |dw:1442907337629:dw|
anonymous
  • anonymous
am i supposed to expand the bottom?
anonymous
  • anonymous
or distribute the 4e^(4x) to the (8x+4)?
FireKat97
  • FireKat97
If the question asks you to simplify, I'm guessing to expand the bottom and cancel out whatever you can would be your best bet
FireKat97
  • FireKat97
But if I had written the above answer in an exam, I believe it would be good enough to secure the full marks, it really depends on what your teacher wants and how far he/she wants you to simplify it
anonymous
  • anonymous
well the question is to find the equation of the line tangent to the graph of that function at point (3,f(3)) and i know i have to take the derivative first so thats what i was doing... but you're saying that answer is good enough to continue solving the rest of the problem?
FireKat97
  • FireKat97
yep, because now you have to substitute and thats usually just done on the calculator, so there isn't much point in simplifying more than necessary and wasting time
anonymous
  • anonymous
ok thanks
FireKat97
  • FireKat97
no problem :)

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