math ch3: matrices

matrix

rows and columns in a matrix are called

when are two matrices equal

to obtain the product of the scalar by a matrix, each element of the matrix must be

you can multiply two matrices A and B only if

what is the determinant denoted by

if the det(A)=0, then the matrix is

systems of equations represented in matrix form can be solved using

what methods are considered less time consuming to solving systems of equations

give the steps to solving systems of equations

for a third-order square matrix, we can use two methods:

what helps find the area of a triangle

identity matrix

identity matrix is denoted by

what operation results in an identity matrix