Question

What is the meaning of delta symbol (that is to say) ∆ in Sets ?
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Answer 1

Answer:

The triangle is known as delta its used to express same kind of set

Answer 2

Answer:

The lowercase letter δ (or ) can be used to denote: A change in the value of a variable in calculus. ... An auxiliary function in calculus, used to rigorously define the limit or continuity of a given function. The Kronecker delta in mathematics.

Step-by-step explanation:

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