Respostas

2013-06-14T00:05:48-03:00

f(x)=(4m+1)x²-x+6
f '(x)=2(4m+1)x-1
2(4m+1)x-1=0
2(4m+1)x=1
(4m+1)x=1/2
x=1/2(4m+1)

f '(x)=2(4m+1)x-1
f "(x)=2(4m+1)
8m+2>0
8m>-2
m > -1/4

Admite se m > -1/4

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