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Consider the set A= {3, 4, 5} and the nu...

Consider the set `A= {3, 4, 5}` and the number of null relations, identity relation, universal relations,reflexive relation on A are respectively `n_1,n_2,n_3,n_4`,Then the value of `n_1+n_2+n_3+n_4` is equal to

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