Question # 1

Multiplicative inverse of "1" is

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+- 1

0

1

None of these

Empty set is

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Not the member of real numbers

Infinite set

Finite set

Not subset of every set

In set builder notation the set {0, 1, 2, ............, 100} can be written as

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0 is a symbol of

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singleton set

Empty set

Equivalent set

Infinite set

(A∩Bc)c= -------------------------

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Ac∪Bc

Ac∪B

Ac∩B

None of these

The sets {1, 2, 4} and {4, 6, 8, 10} are

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Equal sets

Equivalent sets

Disjoint sets

Over lapping sets

The number of proper subset of A ={a.b.c.d} is

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3

6

8

15

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1/x

-x

2x

0.5 x

If T = {2,4,6,8,10,12}, then

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T = (First six natural numbers)

T = (First six odd numbers)

T = (First six real numbers)

T = ( First six even numbers)

The set {1, -1, i, -i}

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Form a group w.r.t addition

Form a group w.r.t multiplication

Does not form a group w.r.t multiplication

Not closed under multiplication

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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A

B

U

None of these

If z1 = 2 + 6i and z2 = 3 + 7i then which expression defines the product of z1 and z2

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36 +(-32)i

-36+32i

6+(-11)i

0, +(-12)i

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A

B

U

None of these

If a 1-1 correspondence can be established b/w two sets A and B, then they are called

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Equal sets

Equivalent sets

Over lapping sets

None of these

The negation of a number

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a relation

a function

unary operation

binary operation

The set { {a,b} } is

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Infinite set

Singleton set

Two points set

Empty set

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square root function

identity function

linear function

quadratic function

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The identity element of a set X with respect to intersection in P(x) is

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X

Does not exist

∅

None of these

The set of first elements of the ordered pairs in a relation is called its

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domain

range

relation

function

The set R is ........w.r.t subtraction

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Not a group

A group

No conclusion drawn

Non commutative group

The multiplicative inverse of -1 in the set {1-,1} is

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1

-1

±1

0

Does not exist

{x : xε Z and x < 1} is

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Singleton set

A set with two points

Empty set

None of these

Which conjunction is not true ?

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if A = (x/x€ Q˄ 0 < x < 1}, the A is

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Infinite set

Finite set

Set of rational numbers

Set of real numbers

If we have a statement "if p then q" then q is called

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Conclusion

Implication

Unknown

Hypothesis

The set (Z, +) forms a group

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Forms a group w.r.t addition

Forms a group w.r.t multiplication

Non commutative group w.r.t multiplication

Doesn't form a group

The set of complex numbers forms

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Commutative group w.r.t addition

Commutative group w.r.t multiplication

Commutative group w.r.t division

Non commutative group w.r.t addition

The identity elements with respect to subtraction is

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0

1

-1

Does not exist

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