Question

determinati A reunit B stiind ca :
A={x€Z/4x-3<=-5}
B={x€Z/5x+3<=10}

Answer 1

4x-3<\ -5
4x<\ -5+3
4x<\ -2
x<\ -1/2
A={-1,0}

5x+3<\ 10
5x<\ 10-3
5x<\ 7
x<\ 7/5
B={0,1}

AUB={-1,0,1}