An equivalent relation $R$ has three equivalent classes of sizes $8,10,12$.
Then the cardinality of $R$ is ?
Any approach for such questions ?
2026-04-07 23:18:22.1775603902
What is the cardinality of the equivalence relation $R$?
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Within the equivalence class, everyone is related to each other including itself. Also, if they are not in the same equivalent class, they are not related.
Hence $$8^2+10^2+12^2$$