The interval using two different representations are (-∝, 11) ∪ (0, ∝) and {x | x < −11 or x > 0}
The interval is given as
x < −11 or x > 0
Inequalities like < and > are represented using the parenthesis ( and )
Also, the term "or" mean union and it is represented using ∪
So, one representation of the interval can be represented as
(-∝, 11) ∪ (0, ∝)
Another representation of the interval is {x | x < −11 or x > 0}
Hence, the interval using two different representations are (-∝, 11) ∪ (0, ∝) and {x | x < −11 or x > 0}
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