They are questions which deal with rectangular arrays of elements.
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They are questions which deal with rectangular arrays.
No, since there is no such thing as a determinate. And, in any case you were wondering about improving your spelling so as to make you questions more answerable, a non-square matrix does not have a determinant.
ya yes its there a matrix called zero matrix
a squar matrix A is called involutary matrix. if A^2=I
A zero matrix is a matrix in which all of the entries are zero.