Question

A={123456} then how many unordered pair if you your answer is wrong then your account will be suspended​

Answer 1

$\large{\underline{\underline{\bold{\red{\sf{Bonjour !}}}}}}$

reflexive = {(1,1)(2,2)(3,3)(4,4)(5,5)(6,6)}

$\large{\bold{\blue{\sf{thanks}}}}$