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Online Tests
Mathematics Fsc Part 1 Chapter 3 Online Test MCQs With Answers
Question # 1
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diagonal matrix
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Question # 2
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scalar matrix
diagonalmatrix
lower triangularmatrix
upper triangularmatrix
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Question # 3
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ab - cd = 0
ac - bd = 0
ad - bc = 1
ad - bc = 0
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Question # 4
If any two rows of a square matrix are interchanged, the determinant of the resulting matrix:
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is zero
is multiplicative inverse of the determinant of the original matrix
is additive inverse of the determinant the original matrix
none of these
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Question # 5
If each element in any row or each element in any column of a square matrix is zero, then value of the determinant is:
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0
1
-1
none of these
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Question # 6
If a matrix A is symmetric as well as skew symmetric, then:
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A is null matrix
A is unit matrix
A is triangular matrix
A is diagonal matrix
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Question # 7
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singular
non-singular
rectangular
null
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Question # 8
If A = [a
ij
], B = [b
ij
] and AB = 0 then:
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A = 0
B = 0
either A = 0 or B = 0
A & B not necessarily zero
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Question # 9
[0] is a:
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Question # 10
If two rows (or two columns) in a square matrix are identical (i.e. corresponding elements are equal), the value of the determinant is:
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0
1
-1
±1
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Question # 11
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40
-40
26
-26
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Question # 12
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diagonal matrix
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Question # 13
If A is a matrix of order m × n, then the number of elements in each row of A is:
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m
n
m + n
m - n
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Question # 14
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 # 15
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 # 16
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Question # 17
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3
-3
1/3
-1/3
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Question # 18
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Question # 19
The additive inverse of a matrix A is:
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A
A
-1
- A
A
2
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Question # 20
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 # 21
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1
-1
-6
6
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