2 1 5 8 _1. Which is the order of this matrix? 4 -1 3 3 |6 -2 1 9 Е. З х 4 A. 4 x 2 В. 3 х 2 C. 3 x 3 D. 4 x 3 _ 2. A matrix of order (m × n) is multiplied by a matrix of order (p x r). The matrices are multiplicable when: A.n = p B. m =r C. m = p D. n =r E. both matrices are of the same order. 3 -2] 3. If A = then -2A is: 6. -4 -6 С. -6 4 А. -8 4 Е. –12 8 -12 -12] 12 -6 -4 8 D. -6 -8 -12 4 8. B.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
2
15 8
_1. Which is the order of this matrix? 4 -1 3 3
6 -2 1 9
A. 4 x 2
C. 3 x 3
E. 3 x 4
В. 3 х 2
D. 4 x 3
_ 2. A matrix of order (m × n) is multiplied by a matrix of order (p x r). The
matrices are multiplicable when:
A. n = p
C. m = p
D. n =r
E. both matrices are
B. m = r
of the same order.
3 -2]
3. If A =
, then –2A is:
-4
6.
А.
-8 12
-6
-6
С.
8
4
4
Е.
-12
-12
8
-12
-6
В.
-8 -12
-4
8
D.
4
- 4. When a matrix of order (m × n) is multiplied by a matrix of order (p x
r) the order of the matrix obtained is:
А. т xр
В. п хр
С.п xr
E. m x n
D. m x r
-–10
5. If A =
3
and B =
[7 1
then A + B equals:
-12
3 10
3 2
E.
|5 2
4
-17
С.
-1
2
-3
А.
5
- 2
– 22
[17 4
В.
5 22
3
D.
4
5
- 2
Transcribed Image Text:2 15 8 _1. Which is the order of this matrix? 4 -1 3 3 6 -2 1 9 A. 4 x 2 C. 3 x 3 E. 3 x 4 В. 3 х 2 D. 4 x 3 _ 2. A matrix of order (m × n) is multiplied by a matrix of order (p x r). The matrices are multiplicable when: A. n = p C. m = p D. n =r E. both matrices are B. m = r of the same order. 3 -2] 3. If A = , then –2A is: -4 6. А. -8 12 -6 -6 С. 8 4 4 Е. -12 -12 8 -12 -6 В. -8 -12 -4 8 D. 4 - 4. When a matrix of order (m × n) is multiplied by a matrix of order (p x r) the order of the matrix obtained is: А. т xр В. п хр С.п xr E. m x n D. m x r -–10 5. If A = 3 and B = [7 1 then A + B equals: -12 3 10 3 2 E. |5 2 4 -17 С. -1 2 -3 А. 5 - 2 – 22 [17 4 В. 5 22 3 D. 4 5 - 2
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