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roselin
 3 years ago
find the derivative of u=5x+1/2 sqrt of x
roselin
 3 years ago
find the derivative of u=5x+1/2 sqrt of x

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zepdrix
 3 years ago
Best ResponseYou've already chosen the best response.1Rewrite the sqrt as a fractional exponent. From there, it will be easier to see what you need to do.( Psssst! Power rule!) \[\large u=5x+\frac{ 1 }{ 2 } x^{1/2}\]

roselin
 3 years ago
Best ResponseYou've already chosen the best response.0after that, just plug in the values for each?

zepdrix
 3 years ago
Best ResponseYou've already chosen the best response.1Hmm you shouldn't need to "plug" anything in, do you know how to take a derivative using the power rule?

zepdrix
 3 years ago
Best ResponseYou've already chosen the best response.1yes good, that's the derivative of x^n :)

zepdrix
 3 years ago
Best ResponseYou've already chosen the best response.1dw:1351713737221:dw Understand what we did there? :O

roselin
 3 years ago
Best ResponseYou've already chosen the best response.0do i have to simplify it further?

roselin
 3 years ago
Best ResponseYou've already chosen the best response.0or just leave it like that?

zepdrix
 3 years ago
Best ResponseYou've already chosen the best response.1dw: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.
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