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A, b ∈q , then (a+ b)∈ …………… । *​
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A, b ∈q , then (a+ b)∈ …………… । *​

User Andrew Lively
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1 Answer

5 votes

Answer:

this is an equation of closure property of rational numbers under addition

Explanation:

this is the meaning of it

for every a and b belongs to q then a+b belongs to q

User Vojtech Trefny
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