If the matrix \(A\) is be the symmetric and skew-symmetric, then1\(A\) is diagonal matrix2\(A\) is a zero matrix3\(A\) is square matrix4None of theseAnswer & explanation+Correct answer: option 2Consider a matrix \(A\) satisfying \(A^{\prime}=A\) and \(A^{\prime}=-A\) then \(A=-A\Rightarrow A=0\)
