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Online Tests
Mathematics 9th Class English Medium Unit 1 Online Test MCQs With Answers
Question # 1
If A, B and C are comfortable for multiplication then A(BC) =
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AB
A(CB)
(AB)C
None
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Question # 2
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Square
Row
Column
Rectangular
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Question # 3
The rectangular array of numbers enclosed by a pair of brackets is called:
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Determinants
Matrix
Set
Solution set
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Question # 4
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[8 2]
Product is not possible
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Question # 5
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9
-6
6
-9
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Question # 6
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 # 7
If a matrix has m rows and n columns the order of matrix is:
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m-by-m
n-by-n
m-by-n
n-by-m
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Question # 8
The entries presented in vertical way are called _______
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Columns
Diagonals
Row
Order
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Question # 9
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1-by-3
3-by-1
3-by-3
2-by-2
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Question # 10
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6
3
-3
-6
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Question # 11
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[2x + y]
[x - 2y]
[2x - y]
[x + 2y]
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Question # 12
A matrix is called column matrix if it has only one:
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Column
Row
Diagonal
None
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Question # 13
The matrix M = [2 -1 7] is called:
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Row matrix
Column matrix
Diagonal matrix
Zero matrix
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Question # 14
A matrix is called ______ matrix, if its number of rows is equal to its number of columns:
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Rectangular
Row
Column
Square
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Question # 15
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3-by 2
2-by-3
1-by-3
3-by-1
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Question # 16
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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