Question

Determinati elementele urmatoarelor multimi:
a) A={ x € Z| x divide -9}
b) B= {x € Z| x divide -24}

Answer 1

x divide pe -9, deci -9=x*a, a=nr. intreg, deci x apartine multimii  A={-9,-3,-1,1,3,9}

x divide pe -24, deci -24=x*a, a=nr. intreg, deci x apartine multimii  A={-24,-12,-8,
-6,-4,-3,-2,-1,1,2,3,4,6,8,12,24}