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If a is symmetrical matrix as well as skew symmetric mayrix then a |
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Answer» :- null matrixBefore, we go on to the SOLUTION, LET's discuss what is symmetric and skew symmetric matrix.SKEW SYMMETRIC MATRIX .A matrix which is equal to its transpose.=> A = A' .........(i)SKEW- SYMMETRIC MATRIX A matrix which SATISFIES the relation A = - A' ......(ii)Now, SINCE, A is both symmetric and skew symmetric.Hence, from (i) and (ii)A' = - A'=> A = - A=>2A = 0=> A = 0.Hence, A is a null matrix. |
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