Answer:
1) {-9, -7, 1}
2) {-12, -10, -2}
3) {-11, -8, 4}
Explanation:
For no 1...
The range is [ -9, -7, 1]
For no 2....
The range is [-12, -10, -2]
For no 3.....
The range is [-11, -8, 4]
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