MT Ch 3.5 & 3.6 Flashcards
1
Q
What come first in matrices
A
Rows then columns
2
Q
When can’t you add or subtract
A
If aren’t the same dimensions
3
Q
What is the scalar
A
The number multiplied outside of the matrix
4
Q
Associative property of addition
A
(A+B)+C=A+(B+C)
5
Q
Commutative property of addition
A
A+B=B+A
6
Q
Distributive property
A
K(A+B)=kA+kB
7
Q
Distributive property of subtraction
A
K(A-B)= kA-kB
8
Q
In order to multiply must be…
A
Same inner numbers
3X2 2X2
9
Q
Associative property of matrix multiplication
A
A(BC)=(AB)C
10
Q
Left distributive property
A
A(B+C)=AB+AC
11
Q
Right distributive property
A
(A+B)C=AC+BC
12
Q
Associative property of scalar multiplication
A
K(AB)=(kA)*B=A(kB)
