Question

Aflati valorile lui xapartine lui N , astfel incat 1/3 <x+1/4<7/3

Answer 1

1/3<x+1/4<7/3 |-1/4
1/3-1/4<x<7/3-1/4
4-3/12<x<28-3/12
1/12<x<25/12
xapartine {1,2}