Question

Aflati suma si produsulelementelor multimii A= { x ∈ Z / -4 mai mare sau egal x mai mare sau egal ca 2 }

Answer 1

-4≤x≤2⇒x∈[-4,-3,-2,-1,0,1,2];
⇒A=[-4,-3,-2,-1,0,1,2];
⇒S=[-4]+[-3]+[-2]+[-1]+0+1+2
⇒S=[-10]+0+1+2
⇒S=-7⇒suma elementelor multimii;
⇒P=0⇒produsul numerelor elementelor multimii unde se afla si 0;