Subjects/Algebra/Rational expressions and partial fractions/Domain of a rational expression6. Rational expressions and partial fractionsDomain of a rational expressionLevel: fundamentalIn 6. Rational expressions and partial fractionsFormulaCopy LaTeXR(x)=Q(x)P(x),Q(x)=0DetailThe denominator cannot be zero.Related formulasRelatedRational equationQ(x)P(x)=S(x)R(x)⇒P(x)S(x)=R(x)Q(x)Open formulaOpen in sectionRelatedDomainDom(f)={x:f(x) estaˊ definida}Open formulaOpen in section