Question

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1. Let A={1,2,3,4} and R={(a,b): a,b ∈ A, a divides b and b divides a }, then show that R is identity relation on set A.
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Answer 1

Answer:

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Step-by-step explanation:

ANSWER ::

A={1,2,3,4}

R={(a,b): a,b ∈ A, a divides b and b divides a }

Then

R = { (1,1), ( 2,2), (3,3), (4,4)}

Which shows that

R is identity relation on set A