HOW TO FIND THE DETERMINANT OF A 2x2AND 3x3 MATRIX
The determinant of matrix A is
The determinant of matrix B is
The determinant of matrix G is
The determinant of matrix H is
Warm-Up
Use the following matrices to answer questions 1-14.
I can add A + B.
I can subtract w from D.
C + D = D + C
I can multiply AB.
I can multiply BD.
I can multiply DB.
BD = DB
AB = BA
The dimensions of E are
After multiplying FC, the order of the resulting matrix is
After multiplying DG, the dimensions of the resulting matrix is
After multiplying Hw, the order of the resulting matrix is
Use desmos.com/matrix to find a, b and c.
a =
b =
c =
Look at each square matrix. If you had to choose one number to represent an individual square matrix, how would you select that number?
For example, what one number would you use to represent the data in matrix B? matrix H?