bmelyk
find the second and third derivative of: 6/9+x
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bmelyk
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for my first derivative i had
\[\frac{ -6 }{ (9+x)^2 }\]
bmelyk
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my second i had: \[\frac{ x^2-27x+6 }{ (9+x)^4 }\]
is that one right?
zepdrix
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|dw:1352139362045:dw|
Hmm this is what I'm coming up with, It's probably easier to apply the power rule instead of .. quotient rule or whatever you did there :o
bmelyk
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so thats the second derivative, did i have the first one right?
zepdrix
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Yah first one looks good! :)
bmelyk
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and is the third: \[\frac{ 36 }{ (9+x)^4 }\]
zepdrix
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Hmmm yah looks good.
bmelyk
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thx