Question

vă rog repede dau coroana vă rog frumos
ex 8 pliss repede​

Answer 1

Răspuns:

a. 5∈(-1,7)

R = 0,1,2,3,4,5,6

adevarat

b. 3 ∈ (3, +∞)

M = 4,5,6...

3 ∉ (3, +∞)

fals

R= 4,5,6,7,8,9...

c. 2∈ (-∞, 2]

adevarat

R= -∞...-2,-1,0, 1,2

d. 10,2 ∈ (10,1;10,9)

adevarat

Q=10,2;10,3;10,4...10,8

e. 7∈ [-3,7)

fals

7∉[-3,7)

R = -3,-2,-1,0,1,2,3,4,5,6

f. 0 ∈ [0,100)

adevarat

N=0,1,2,3,4,5,6,7...99

Answer 2

Răspuns:

Explicație pas cu pas:

a)5€ (-1; 7) (A)

b)3€ (3; +infinit) (F)

c)2€(-infinit; 2] (A)

d)10,2€(10,1; 10,19) (F)

e)7€[-3; 7) (F)

f)0€[0; 100) (A)

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