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9th Class Mathematics Chapter 1 Matrices and Determinants English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
If B+A=A=A+B, the B is called:
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Multiplicative identity
Multiplicative inverse
Additive identity
Additive inverse
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Question # 2
Which is order of square matrix:
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2-by-2
1-by-2
2-by-1
3-by-2
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Question # 3
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9
-6
6
-9
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Question # 4
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 # 5
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Question # 6
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 # 7
AA
-1
= _________:
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A
A
-1
I
0
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Question # 8
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 # 9
Transpose of A is denoted by:
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-A
A
A
t
(A
t
)
t
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Question # 10
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-3
-4
3
4
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Question # 11
The entries presented in vertical way are called _______
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Columns
Diagonals
Row
Order
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Question # 12
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[-13]
[-3]
[3]
[13]
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Question # 13
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M
O
-M
I
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Question # 14
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Question # 15
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ab-cd
ac-bd
bc-ad
ad-bc
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