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Mathematics 8 Online
OpenStudy (anonymous):

f(x) = x/(5+x^2) Determine all local extrema using the second derivative test.

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

OpenStudy (anonymous):

first derivative i got (5-x)/ (5+x^2)^2

OpenStudy (baldymcgee6):

|dw:1351474749991:dw|

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