新GRE数学复习要点之Substitution
SubstitutionSubstitutionisamethodwhereoneormorevariablesinanexpressionisreplacedbynumbersoranothersetofevaluateanexpressionspecificnumbersareusedassubstitute.Toexpressintermsofanothersetofvariables,va...
SubstitutionSubstitutionisamethodwhereoneormorevariablesinanexpressionisreplacedbynumbersoranothersetofevaluateanexpressionspecificnumbersareusedassubstitute.Toexpressintermsofanothersetofvariables,va...