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Online Tests
Mathematics 9th Class English Medium Unit 1 Online Test MCQs With Answers
Question # 1
Choose an answer
3-by 2
2-by-3
1-by-3
3-by-1
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Question # 2
The rectangular array of numbers enclosed by a pair of brackets is called:
Choose an answer
Determinants
Matrix
Set
Solution set
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Question # 3
If a matrix has m rows and n columns the order of matrix is:
Choose an answer
m-by-m
n-by-n
m-by-n
n-by-m
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Question # 4
The order of matric [2 1] is:
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2-by-1
1-by-2
1-by-1
2-by-2
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Question # 5
Choose an answer
[8 2]
Product is not possible
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Question # 6
Choose an answer
M
O
-M
I
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Question # 7
General form of linear equation in two variables is:
Choose an answer
ax + by -m = 0
ax + by = m
ax + m = by
None of these
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Question # 8
M
-1
=
Choose an answer
-M
AdjM
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Question # 9
If A, B and C are comfortable for multiplication then A(BC) =
Choose an answer
AB
A(CB)
(AB)C
None
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Question # 10
(AB)
t
=
Choose an answer
A
t
B
t
B
t
A
t
AB
BA
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Question # 11
Transpose of row matrix is called ______ matrix:
Choose an answer
Identity
Row
Square
Column
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Question # 12
Inverse of identity matrix is _______ matrix:
Choose an answer
A
O
A
-1
Identity
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Question # 13
Choose an answer
a = -4, b = 7
a = 7, b = -4
a = 1, b = 3
Cannot be determine
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Question # 14
Which is order of square matrix
Choose an answer
2-by-2
-by-2
2-by-1
3-by-2
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Question # 15
Choose an answer
Skew-symmetric
Symmetric
Diagonal
Scalar
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Question # 16
The matrices are denoted by _________ letters of English alphabet:
Choose an answer
Small
Capital
Both a and b
None
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