(See) Given f(x)=-3x^3+x^2-5x+4 , find one interval where the function is increasing. Also find one interval where the function is concave
Question: Given \(f\left( x \right)=-3{{x}^{3}}+{{x}^{2}}-5x+4\) , find one interval where the function is increasing. Also find one interval where the function is concave down.
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