Multiplication of a matrix A with null matrix

Multiplication of a matrix A with identity matrix

Multiplication of a matrix by a scalar and its properties

Multiplication Of A Matrix By A Scalar|Negative Of A Matrix|Exercise Questions|Upper Triangular Matrix|Lower Triangular Matrix|Trace Of Matrix|Exercise Questions|Properties Of Matrix Addition|Exercise Questions|Multiplication Of Matrices|OMR

If A and B are symmetric matrices then AB-BA is a Symmetric Matrix (b) Skewl symmetric matrix Diagonal matrix (d) Null matrix

algebra OF matrix- addition || scalar multiplication || multiplication OF 2 matrix || properties OF multiplication

If an idempotent matrix is also skew symmetric then it can not be 1 an involutary matrix 2 an identity matrix 3 an orthogonal matrix 4 a null matrix.

A square matrix A=[a_(ij)] in which a_(ij)=0 for i!=j and [a]_(ij)=k (constant) for i=j is called a (A) unit matrix (B) scalar matrix (C) null matrix (D) diagonal matrix

Properties Of Matrix Addition|Properties Of Scalar Multiplication Of A Matrix|Exercise Questions|OMR

Give examples to show that : A^2 is a null matrix though A is not null matrix.