Question

Fie multimea A={x ∈ Z*/ |x| ≤ 4} . Dau coronita!
a) A={...}
b) A\Z+ = {...}
c) A intersectata in N={...}

Answer 1

a) A={-4,-3,-2,-1,1,2,3,4}
b) A\Z+ = {-4,-3,-2,-1}
c) A intersectat cu N = {1,2,3,4}