Home › CBSE Class 12 (Commerce) › Mathematics › Matrices › A real matrix that is both symmetric and skew sy…
A real matrix that is both symmetric and skew symmetric must be the:
Azero matrix
Bdiagonal matrix
Crow matrix
Didentity matrix
Answer & Solution
Correct answer: A. zero matrix
A' = A and A' = -A together force A = -A, so every entry is zero.
Related questions
For the matrix with rows (1, 2) and (3, 4), A(adj A) equals which matrix?Which pair names the two ways of solving AX = B using matrices?For the method of inversion to solve three equations, what must be true of the coefficientBy the method of inversion, the solution of AX = B is?Three linear equations in x, y and z are written as AX = B. What are the orders of A, X anWhich rows form the coefficient matrix for 2x + 3y = 5 and x - 4y = 9?In the matrix equation AX = B for a system of equations, what does X hold?To find A inverse by elementary steps, what is done to A?