Math Chapter Wise Sets, Relations And Functions English MCQ UP Higher Asst. Prof. 2021 Q.Let a and b belong to set S, Let R be an equivalence relation on S. Then aRb if and only if A[a]R ≠ [b]R B[a]R ⊆ [b]R C[a]R ⊂ [b]R D[a]R = [b]R Show answer Correct answer: [a]R = [b]R