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OpenStudy (anonymous):
f(x) = x/(5+x^2) Determine all local extrema using the second derivative test.
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OpenStudy (baldymcgee6):
well what's your second derivative?
OpenStudy (anonymous):
i got -2x/ (5+x^2)
OpenStudy (anonymous):
oh wait. it's -2x-1 / (5+x^2)
OpenStudy (baldymcgee6):
no its neither
OpenStudy (anonymous):
is the denominator squared
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OpenStudy (anonymous):
first derivative i got (5-x)/ (5+x^2)^2
OpenStudy (baldymcgee6):
|dw:1351474749991:dw|
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