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Lisa [10]
3 years ago
8

How to determine which values the variable can not be when simplifying a rational expression?

Mathematics
1 answer:
ANTONII [103]3 years ago
3 0

Answer:

Las expresiones racionales son fracciones que tienen un polinomio en el numerador o en el denominador o en ambos. Aunque las expresiones racionales pueden parecer complicadas porque contienen variables, pueden ser simplificadas de la misma forma que las fracciones numéricas.

El primer paso para simplificar una expresión racional es determinar el dominio, para establecer todos los posibles valores y variables. El denominador en una fracción no puede ser cero porque la división entre cero no está definida. Entonces necesitamos encontrar qué valores de las variables en la expresión harían el denominador igual a cero. Estos valores no pueden estar incluidos en el dominio, por lo que son llamados valores excluidos. Los descartamos desde el inicio, antes de continuar.

 

Para las expresiones racionales, el dominio excluirá los valores para los que el valor del denominador es 0.

Step-by-step explanation:

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