e) - 105

Question

e) - 105 < x < 105 g) - 356 <= x < 356; - 513 < x < 513 ) - 805 < x < 806

Answer

e)-105<x<105 Ta có: x € -104;-103;-102;...;102;103;105 Tổng các số nguyên x: (-104)+(-103)+(-102)+...+102+103+104 =[(-104)+104]+[(-103)+103]+[(-102)+102]+...[(-1)+1]+0=0

Answer

e )x=-106,-107,-108,........,102,103,104 g) x=-356,-357,-358,........,353,354,355 h)x=-514,-515,-516,.......,510,511,512 I) x=-806,-807,-808,......,802,803,804,805

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