CallMeAJ CallMeAJ

23-10-2014
Mathematics

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for what values of x is the function f(x)=x^2-4x-5 increasing?

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crisforp crisforp

23-10-2014

For x ∈ [ - b / ( 2a ) ; +oo ) , f is increasing; => x ∈ [ +2 ; +oo ).

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