Knight Johnston
06/18/2024 · Elementary School
3. ¿Todas las funciones polinómicas de grado mayor o igual a 2 presentan extremos? Para probar que esto es falso, trabaje con la función \( f(x)=a x^{3}+b x^{2}+c x \) en Geogebra (utilice deslizadores para los coeficientes a, b y c). Encuentre analíticamente la relación entre los coeficientes para que la función no presente extremos, y verifiquelo con los valores utilizados en los deslizadores.
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Para que la función \( f(x) = ax^3 + bx^2 + cx \) no presente extremos, debe cumplirse \( b^2 < 3ac \). Verifica esta relación en GeoGebra ajustando los coeficientes \( a \), \( b \) y \( c \).
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