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Am nevoie de acest exercitiu, va rog! Dau coroana!

Am Nevoie De Acest Exercitiu Va Rog Dau Coroana class=

Răspuns :

Răspuns


Explicație pas cu pas:.......................................


Vezi imaginea Crisanemanuel

A={x∈Z| |x|≤5}

|x|≤5

-5≤x≤5

x∈{-5,-4,-3,-2,-1,0,1,2,3,4,5}

A={-5,-4,-3,-2,-1,0,1,2,3,4,5}


B={x∈N| 6x-8≤5- x-1/2}

6x-8≤5- x-1/2

12x/2-16/2≤10/2- x-1/2

12x-16≤10-(x-1)

12x-16≤10-x+1

12x-16≤11-x

12x+x≤11+16

13x≤27

x∈{0,1,2}

B={0,1,2}


B⊂A


b) A∩B={0,1,2}

0+1+2=3