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11th Class FSC Mathematics Chapter 3 Test Online MCQs With Answers
Question # 1
[0] is a:
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Question # 2
If A is a matrix of order m × n and B is a matrix of order n × p then the order of AB is:
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p×m
p×n
n×p
m×p
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Question # 3
If A = [aij] and B = [bij] are two matrices of same order r × s, then order of A - B is:
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r - s
r × s
r + s
none of these
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Question # 4
The order of a matrix is shown by:
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number of columns + number of rows
number of rows × number of columns
number of columns - number of rows
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Question # 5
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 # 6
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9
-9
-6
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 AB = BA = I, then A and B are:
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equal to each other
multiplicative inverse of each other
additive inverse of each other
both singular
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Question # 9
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3×3
3×2
2×1
2×3
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Question # 10
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1
-1
-6
6
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Question # 11
If each element of a 3 × 3 matrix A is multiplied by 3, then the determinant of the resulting matrix is:
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|A|
3
27|A|
3|A|
9|A|
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Question # 12
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 # 13
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None
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