Generally speaking, we call the object of study an element and the whole composed of some elements a set. The elements in a given set are different from each other, that is, the elements in the set will not appear repeatedly. For example, a set of numbers 1, 1, 2, 3, 4 can form a set, and it is recorded as A={ 1. Collections can also be "added". Definition: The set consisting of all elements in set A and set B is called the sum of set A and set B, and it is denoted as A+B. If A+B = {﹣ 2,0, 1, 5,7}, b = {﹣ 3,0, 1

Answers {-3,-2,0, 1, 3,5,7}

According to the new definition in the problem, A+B is obtained by analysis.

Solution: ∫ A = {-2,0, 1, 5,7},

B={-3，0， 1，3，5}，

∴A+B={-3,-2,0, 1,3,5,7}.

So the answer is: {-3,-2,0, 1, 3,5,7}

The topic comes from the 20 14 math test paper in Linyi city, Shandong province.