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Online Tests
ECAT Mathematics Chapter 2 Set Function and Groups Online Test MCQs With Answers
Question # 1
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Question # 2
Group of none-singular matrices under multiplication is
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None-Abelian group
Semi group
Abelian group
None of these
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Question # 3
Z is a group under
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Subtraction
Multiplication
Addition
None of these
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Question # 4
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Question # 5
For any two sets A and, A ⊆ B if
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x ∈ A ⇒ x ∈ B
x ∉ A ⇒ x ∉ B
x ∈ A ⇒ x ∉ B
None of these
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Question # 6
The graph of a quadratic function is
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Circle
Straight line
Parabola
Triangle
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Question # 7
If there is one-one correspondence between A and B, then we write.
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A = B
A⊆ B
A⊇ B
A ∼ B
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Question # 8
For any set X, X∪X is
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X
X'
Φ
Universal Set
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Question # 9
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A finite set
An infinite set
An empty set
None of these
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Question # 10
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A
B
A'B'
B'A
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Question # 11
The set of months in a year beginning with S.
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{September, October, November}
Singleton set
Null set
Empty set
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Question # 12
The set (Z,+) forms a group
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Forms a group w.r.t addition
Non commutative group w.r.t multiplication
Forms a group w.r.t multiplication
Doesn't form a group
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Question # 13
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A
B
U
None of these
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Question # 14
Multiplicative inverse of "1" is
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0
-1
1
{0, 1}
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Question # 15
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none of these
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Question # 16
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Question # 17
Multiplicative inverse of "1" is
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+- 1
0
1
None of these
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Question # 18
Identity w.r.t intersection in a power set of any set is
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∅
Set itself
Singleton set
{0}
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Question # 19
The set R is ______ w.r.t subtraction
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Not a group
A group
No conclusion drawn
Non commutative group
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Question # 20
A = B if
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A is equivalent to B
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Question # 21
The identity elements with respect to subtraction is
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0
1
-1
Does not exist
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Question # 22
Empty set is
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Not the member of real numbers
Infinite set
Finite set
Not subset of every set
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Question # 23
A - B = ______
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Question # 24
Which of the following has the same value as i113
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i
-1
-i
1
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Question # 25
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A = B
B = C
A = C
None of these
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Question # 26
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Question # 27
Which of the following sets in infinite
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The set of students of your class
The set of all schools in Pakistan
The set of natural numbers between 3 and 10
The set of rational numbers between 3 and 10
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Question # 28
If the intersection of two sets is non-empty, but either is a subset of other are called
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Disjoint sets
Over lapping
Equal sets
None of these
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Question # 29
A function in which the second elements of the order pairs are distinct is called
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Onto function
One-one function
Identity function
Inverse function
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Question # 30
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Question # 31
The set {1, -1, 1, -1}, form a group under
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Addition
Multiplication
Subtraction
None
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