Ответ:
a) D(y) = {-2} ∪ {-1} ∪ {0} ∪ {3} ∪ {4}
б) D(y) = {-2} ∪ {-1} ∪ {0} ∪ {1} ∪ {2} ∪ {3}
в) D(y) = [-2; 4]
г) D(y) = [-3; 5]
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Ответ:
a) D(y) = {-2} ∪ {-1} ∪ {0} ∪ {3} ∪ {4}
б) D(y) = {-2} ∪ {-1} ∪ {0} ∪ {1} ∪ {2} ∪ {3}
в) D(y) = [-2; 4]
г) D(y) = [-3; 5]