Explicaê

01

 Sejam X e Y números reais tais que:

 

1 fourth space less than space X space less than space 1 third space space semicolon space 2 over 3 space less than space Y space less than 3 over 4

 

e     A  =  3x  -  2y. De acordo com essas afirmativas, podemos concluir que:

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