Scalar and Matrix Multiplication Answers

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1
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Choose one:

A
1 x 3
B
3 x 1
C
3 x 3
3

b2 =

Answer:

33

4

b3 =

Answer:

6

5

c21 =

Answer not available
6

c22 =

Answer not available
7

d11 =

Answers:
Part 2:6
Part 3:1
Part 4:-4
8

d12 =

Answer not available
9

d21 =

Answer not available
10

d22 =

Answer not available
11

Which of the following statements are true about scalar multiplication of matrices?

A
You can multiply a matrix of any size by a scalar.
B
For any matrix A, 1 × A = A.
C
For any scalar r, rI = I, where I is the identity matrix.
D
You can scale geometric figures using scalar multiplication.
E
Scalar multiplication is a shortcut for repeated addition of the same matrix.
F
Scalar multiplication is not possible for matrices that are not square.
12

mc001-1.jpg

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
18

✔ Scalar MatrixNeither

A
Scalar
B
Matrix
C
Neither
19

Which matrix represents the transformed triangle RT?

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
It is not possible to multiply the two matrices.
Option D
20

x

Answer not available

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