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What is the minimum number of multiplications involved in computing the matrix product PQR? Matrix P has 4 rows and 2 columns, matrix Q has 2 rows and 4 columns, and matrix R has 4 rows and 1 column.

Let A be an m * n matrix and B an n * m matrix. It is given that determinant (Im + AB) = determinant (In + BA) where Ik is the k * k identity matrix. Using the above property, the determinant of the m

Which of the following statements are TRUE? P. The eigenvalues of a symmetric matrix are real Q. The value of the determinant of an orthogonal matrix can only be +1 R. The transpose of a square mat

A diagonal matrix having equal elements is called a

A diagonal matrix having same elements is called a

A square matrix in which all elements except at least one element in diagonal are zeros is said to be a

In a unit matrix, number of diagonal elements is/are