Question

Dau coroană la primul care raspunde ​

Answer 1

Răspuns:

a) A={x€Z| 2<|x|<5}

2<|x|<5

==> x={4,3,2,1,0,-1}

b) B={x€Z| 2≤|x|<5}

2≤|x|<5

==> x={-2,-1,0,1,2,3,4}

c) C={x€Z| 2<|x|≤5}

2<|x|≤5

==> x={-1,0,1,2,3,4,5}

d) D={x€Z| 2≤|x|≤5}

2≤|x|≤5

==> x={-2,-1,0,1,2,3,4,5}

Answer 2

A=4,3,-3,-4
B=4,3,2,-2,-3,-4
C=5,4,3,-3,-4,-5
D=5,4,3,2,-2,-3,-4,-5.