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Q.
Which of the following is correct statement?
Matrices
Solution:
Scalar matrix is a particular case of a diagonal matrix, where all the diagonal elements are same. Thus, every diagonal matrix is not a scalar matrix. Identity matrix is a particular case of scalar matrix, since all diagonal elements are same and have the value 1 . By definition of scalar matrix, it is a diagonal matrix. Null matrix is a matrix in which all elements are zero. Such a matrix can be of any order and any type.