Saturday, August 3, 2013

How would you go about solving this inequality? x^3>1

x^3>1 
x^3-1>0 
(x-1)(x^2+x+1)>0 
but this is always true: x^2+x+1>0 

so we only need look at 

x-1>0 
and thus x>1 

:)

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