Question

33°. Relacione usando os símbolos ∈, ∉, ⊂ ou ⊄. a) -13 e N b) 0 e Z* c) -2,25 e Q+ d) 6/16 e Q e) N* e R f) Z_ e R_ g) R + e R h) R* e R i) Q + e R_

Answer 1

$a)~~-13\notin N \\ \\ b)~~0\notin Z^* \\ \\ c)~~-2,25\notin Q_+ \\ \\ d)~~ \frac{6}{16} \in Q \\ \\ e)~~N^* \subset R \\ \\ f)~~Z_-\subset R_- \\ \\ g)~~R_+\subset R \\ \\ h)~~R^*\subset R \\ \\ i)~~Q_+\not\subset R_-$

Answer 2

Resposta:

A: -2,5;€ N

B: 0 € z*

C: - 2,25 € Q+

D: 6 € Q

16

E: N* C R*

f: z_ C R_

G: R+ C R

H: R* C R+

i: Q+ C R_

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