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Mathematics FA Part 1 Chapter 3 Online Test MCQs With Answers
Question # 1
Choose an answer
3×1
1×3
3×3
1×1
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Question # 2
If A is a square matrix, then:
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|A
t
| = A
|A
t
| = -A
|A
t
| = |A|
A
t
= A
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Question # 3
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scalarmatrix
diagonalmatrix
lower triangularmatrix
uppertriangularmatrix
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Question # 4
A matrix in which each element is 0 is called:
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Question # 5
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5
14
20
6
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Question # 6
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1
-5
-1
none
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Question # 7
If A and B are two matrices, then:
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A B = O
AB = BA
AB = I
AB may not be defined
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Question # 8
If the matrices A & B have the orders 2×3 and 5×2 then order BA is:
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3×5
5×2
2×2
none
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Question # 9
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2
-2
5
-5
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Question # 10
The additive inverse of a matrix A is:
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A
A
-1
- A
A
2
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Question # 11
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Question # 12
If A is a square matrix order 3 × 3 the |kA| equals:
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k |A|
k
2
|A|
k
3
|A|
k
4
|A|
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Question # 13
Two matrices X and Y are equal if and only if:
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X and Y are of same order
Their corresponding elements are equal
Both a and b
None of these
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