Examples of Math Problems
examples of math problems that I like, solved, etc.
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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