Adding & Subtracting Matrices
scalar multiplication
Identifying elements of matrices
Scalar stuff
100
To add two Matrices together we add each
What is number in matrix A by each number in matrix B
100
what is the definition of scalar multiplication?
What is to multiply a real number by each number inside a matrix.
100
Identify element a23 from A =
What is a23 = 2
100
Do the following scalar multiplication:
What is
| 20|
| 15| ?
200
[2 3 5] + [3 5 8] = ?
What is [5 8 13]
200
5[1 3 5]=
What is [5 15 25]
200
Identify element a31 from A =
What is a31 = 1
200
Do the following:
What is [-5 10 5 -10] ?
300
[4 17 2 5] + [1 4 2 5] = ?
What is [5 21 4 10] ?
300
2[4 7 6]
What is [8 14 12]
300
Identify element a43 from A =
What is a43 = undefined
300
Do the following, and determine the element a22 of result:
What is a22 = 10?
|-25 -30 20|
|-20 10 5 |
400
[5 4] - [2 -3] = ?
What is [3 7]
400
-1[10 16 19]
What is [-10 -16 -19]
400
Identify element a34 from A =
What is a34 = 5
400
Do the following, and determine a13 of result:
What is a13 = 20?
|-25 -30 20|
|-20 10 5 |
500
[9] + [0] =?
What is [9]
500
10[2 7 5]
What is [20 70 50]
500
identify element a02 from A =
What is a02 = undefined
500
Do the following scalar multiplication and determine all elements of the result:
What is 4*(-4) 4*(3) 4*(-5)?
| -16 |
| 12 |
| -20 |