Answer :
All sets in which number -11 is an element are integers, rational number, real number.
What are integers?
An integer is colloquially defined as a number that can be written without a fractional component.
What are rational numbers?
A number that can be represented as the quotient p/q of two integers such that q ≠ 0 is called rational number.
What are real numbers?
A real number is a value of a continuous quantity that can represent a distance along a line.
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