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Mathematics 9th Class English Medium Unit 1 Online Test MCQs With Answers
Question # 1
Choose an answer
a = -4, b = 7
a = 7, b = -4
a = 1, b = 3
Cannot be determine
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Question # 2
Let A,B,C be three matrices, then A(B+C) = AB + AC is known as:
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Cumulative property w.r.to '+'
Associative property w.r.t '+'
Left distributive law
Right distributive law
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Question # 3
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Associative
Distributive
Commutative
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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9
-6
6
-9
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Question # 6
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ab-cd
ac-bd
bc-ad
ad-bc
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Question # 7
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[8 2]
Product is not possible
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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
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Question # 10
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 # 11
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3-by-2
2-by-3
1-by-3
3-by-1
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Question # 12
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M
O
-M
I
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Question # 13
M
-1
=
Choose an answer
-M
AdjM
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Question # 14
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 # 15
Order of matrix P = [3 2 5] is:
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3-by-3
3-by-1
1-by-3
1-by-1
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