matrices

Question 1

AB = 2X3 . 3X2
WHAT IS THIS

Answer 1

Conforming

Question 2

AB does not = BA
what is this

Answer 2

Matrices are not communative

Question 3

PQ(R) = P(QR) WHAT IS THIS

Answer 3

Distributive

Question 4

I in matrix form

Answer 4

[1 0]
[0 1]

Question 5

Rotational matrix

Answer 5

{Cos @ -sin@}
{ sin@ cos@ }

Question 6

[ C 0]
[0 d]

Answer 6

Stretch parallel to x axis sf of c
Stretch parrel to y axis sf of d

Question 7

[K 0]
[0 K] transformation?

Answer 7

Englarment with where k is the sf

Question 8

Sheer in y axis

Answer 8

[ 1 K]
[ 0 1]

Question 9

Sheer in x axis

Answer 9

[ 1 0]
[ K 1]

Question 10

Rotations in x axis 3D

Answer 10

[1 0 0 0]
[0 cos @ -sin@]
[0 sin@ cos@]

Question 11

Rotation in y axis

Answer 11

[Cos @ 0 sin@]
[ 0 1 0 ]
[-sin@ 0 cos @]

Question 12

Rotation in z axis

Answer 12

[ cos @ -sin@ 0]
[ sin@ cos @ 0]
[ 0 0 1]

Question 13

Reflection in x plane

Answer 13

[-1 0 0]
[ 0 1 0]
[0 0 1]

Question 14

Reflection in y plane

Answer 14

[ 1 0 0 ]
[ 0 -1 0]
[ 0 0 1 ]

Question 15

Reflection in Z plane

Answer 15

[1 0 0 ]
[ 0 1 0 ]
[ 0 0 -1]