6 |
x+5 |
6 |
x+5 |
6 |
x+5 |
6-x-5 |
x+5 |
x-1 |
x+5 |
6 |
x+5 |
A.2 | B.2,4 | C.2,4,6 | D.1,2,3,4,6 |
A.{0,1} | B.{2,3,4,5} | C.{0,2,3,4,5} | D.{1,2,3,4,5} |
A.φ | B.{x|1<x<3} | C.{x|1≤x<3} | D.{x|1≤x≤3} |
A.(-∞,0)∪[2,+∞) | B.(-∞,0]∪[2,+∞) | C.(2,+∞) | D.[2,+∞) |
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