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Online Tests
Mathematics 9th Class English Medium Unit 1 Online Test MCQs With Answers
Question # 1
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[2x + y]
[x - 2y]
[2x - y]
[x + 2y]
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Question # 2
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Square
Row
Column
Rectangular
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Question # 3
The matrices are denoted by _________ letters of English alphabet:
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Small
Capital
Both a and b
None
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Question # 4
Transpose of A is denoted by:
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-A
A
A
t
(A
t
)
t
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Question # 5
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ab-cd
ac-bd
bc-ad
ad-bc
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Question # 6
Transpose of row matrix is called ______ matrix:
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Identity
Row
Square
Column
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Question # 7
The real numbers used in the formation of a matrix are called _______ of the matrix:
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Determinants
Matrix
Set
Element
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Question # 8
(AB)
-1
= B
-1
A
-1
is known as:
Choose an answer
Law of transpose of product
Law of multiplicative inverse
Distributive law
Law of inverse of the product
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Question # 9
Let A and B be two matrices. Then A is said to be equal to B, and denoted by A = B if and only if:
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Order of A = Order of B
Corresponding entries are equal
Either a or b
Bot a and b
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Question # 10
M
-1
=
Choose an answer
-M
AdjM
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Question # 11
(AB)
-1
=
Choose an answer
A
-1
B
-1
AB
BA
B
-1
A
-1
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Question # 12
The idea of matrices was given by
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Aurthur Cayley
Briggs
Al-Khawarzmi
Thomas Harriot
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Question # 13
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[-13]
[-3]
[3]
[13]
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Question # 14
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3-by 2
2-by-3
1-by-3
3-by-1
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Question # 15
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6
3
-3
-6
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Question # 16
A matrix is called a row matrix if it has only one _________:
Choose an answer
Column
Row
Diagonal
None
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