Question

Dados A = [ 2, 7] , B = [ -1, 5] e E = [ 3, 9[ , calcule: a) A U B b) B Ո A c) A Ո E d) E U B

Answer 1

Explicação passo-a-passo:

$A~~--------\bullet^2xxxxxxxxxxxx\bullet^7------\\ B~~-----\bullet^{-1}xxxxxxxxxx\bullet^5---------\\ \\ A\bigcup B~~---\bullet^{-1}xxxxxxxxxxxxxxxx\bullet^7------\\ \\ A\bigcup B=[-1,7]\\ \\ ------------------------------------------$

$B\bigcap A=[2,5]$

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$A~~---\bullet^{-1}xxxxxxxx\bullet^7------\\E~~~~------\bullet^3xxxxxxxx\bullet^9----\\ \\ A\bigcap E~~~----\bullet^3xxxxx\bullet^7--------\\ \\ A\bigcap E=[3,7]$

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$E~~------\bullet^3xxxxxxxxxxx\circ^9----\\ B~~~---\bullet^{-1}xxxxxxxx\bullet^5-------\\ \\ E\bigcua ----\bullet^{-1}xxxxxxxxxxxxxxx\circ^9-----\\ \\ E\bigcup B=[-1,9[$

Answer 2

Resposta:

Explicação passo-a-passo:

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INTERVALOS REAIS

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a) A U B = [ - 1, 7 ]

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b) B int A = [ 2, 5 ]

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c) A int E = [ 3, 7 ]

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d) E U B = [ - 1, 9 [

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(Espero ter colaborado)