![新GRE数学复习要点之Substitution]( "新GRE数学复习要点之Substitution")
- SubstitutionSubstitutionisamethodwhereoneormorevariablesinanexpressionisreplacedbynumbersoranothersetofevaluateanexpressionspecificnumbersareusedassubstitute.Toexpressintermsofanothersetofvariables,variablesarereplacedbythenewsetofvariablesExample:If...
- 19211
学者斋