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On (A={1,2,3,4}), the matrix of a relation is (\begin{pmatrix}1&0&1&0\0&1&0&1\1&0&0&0\0&1&0&1\end{pmatrix}). What type is the relation?

Answer and explanation

Correct answer: Symmetric

Step 1: A relation is symmetric when its matrix is symmetric about the main diagonal. Step 2: Here (m_{13}=m_{31}=1), (m_{24}=m_{42}=1), and the other matching positions also agree. Step 3: In matrix questions, compare entries across the main diagonal.

Related tags

Symmetric RelationMatrix RepresentationClass 12Relations And FunctionsMathematicsClass 12 Mcq

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