Let A = x+y 2+2 2 4 x+y 0 2 4 Y for the matrix B= y - x X 0 -1 I. B is a skew-symmetric matrix. II.B2 is a symmetric matrix. III. Tr(B) = -18. O A. Only I O B. I and II O C. I and III O D. II and II O E. I, II and III be a symmetric matrix. Which of the following statement(s) are correct 1 Y

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A: This is a problem of matrix multiplication. Based on the general formula we will solve the question.

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