A) \[0<x<1\]
B) \[-1<x<1\]
C) \[x<-1\] or \[x>1\]
D) \[-1<x<-1/2\]
Correct Answer: C
Solution :
Let \[f(x)=2{{x}^{3}}-6x+5\] Þ \[{f}'(x)=6{{x}^{2}}-6>0\] Þ \[{{x}^{2}}-1>0\]Þ \[(x-1)\] \[(x+1)>0\]Þ\[x>1\] or \[x<-1\].You need to login to perform this action.
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