Question

01 - Relacione as sentenças abaixo, utilizando os sinais de E (pertence) ou E (não pertence): j)89___Q. k) -143___Q. L)1.373787890....___Q
m)-45/8____Q. n)2,47____Q. O)-1.373737...___Q.



​

Answer 1

$\large\boxed{\begin{array}{l}\tt j)~\sf 8~\underline{\in}~\mathbb{Q}\\\tt k)~\sf -143~\underline{\in}~\mathbb{Q}\\\tt l) 1,37378790...~\underline{\not \in}~\mathbb{Q}\\\tt m)~\sf-\dfrac{45}{8}~\underline{\in}~\mathbb{Q}\\\tt n)~\sf 2,47~\underline{\in}~\mathbb{Q}\\\tt o)~\sf-1,373737...~\underline{\in}~\mathbb{Q}\end{array}}$