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August 2, 2015

Homework Help: Calculus- To Reiney

Posted by John on Monday, April 28, 2008 at 12:11am.

I have 3 calc problems that i have not been able to do please help me... i've been on here yesterday as well but no one was able to assist me with these particular ones...


1. If f(x)=5x^32/x^4
find f'(x)____

what i got was (4x^2+7x-12)/x^8

2. The position function of a particle is given by s=t^34t^27t t>=0
where s is measured in meters and t in seconds. When does the particle reach a velocity of 10 m/s? ____

3. f(x)=2x^2+7x+3/ sqroot of x

Find f'(x)

i got ((x^(-1/2))(4x+7)+1/2x^(-3/2)(2x^2+7x+3))/x

i had asked earlier and Damon answered them but it turned out to be wrong

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