anonymous
  • anonymous
find the derivative of u=5x+1/2 sqrt of x
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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zepdrix
  • zepdrix
Rewrite the sqrt as a fractional exponent. From there, it will be easier to see what you need to do.( Psssst! Power rule!) \[\large u=5x+\frac{ 1 }{ 2 } x^{1/2}\]
anonymous
  • anonymous
okay,
anonymous
  • anonymous
after that, just plug in the values for each?

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zepdrix
  • zepdrix
Hmm you shouldn't need to "plug" anything in, do you know how to take a derivative using the power rule?
anonymous
  • anonymous
i got 5/ x^1/2
anonymous
  • anonymous
yeah
zepdrix
  • zepdrix
Hmmm
anonymous
  • anonymous
nx^ n-1?
anonymous
  • anonymous
sorry
zepdrix
  • zepdrix
yes good, that's the derivative of x^n :)
zepdrix
  • zepdrix
|dw:1351713737221:dw| Understand what we did there? :O
anonymous
  • anonymous
yeah,
anonymous
  • anonymous
do i have to simplify it further?
anonymous
  • anonymous
or just leave it like that?
zepdrix
  • zepdrix
|dw:1351714227487:dw| You can write it like this if you want. But it's not a big deal. The first form of the answer we came up with is fine.
anonymous
  • anonymous
okay, thanks

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