Question # 1

Additive inverse of -a -b is

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a

-a + b

a - b

a + b

To each element of a group there corresponds ______ inverse element

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Two

One

No

Three

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A

B

U

None of these

Z is a group under

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Subtraction

Multiplication

Addition

None of these

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

If A=B, then

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A⊂B and B⊂A

A⊆B and B⊈A

A⊆B and B⊆A

None of these

{1, 2, 3} is _____

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an infinite set

A finite set

A singleton set

Universal set

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The complement of set A relative to universal set U is the set

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The number of subset of {0} is

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1

2

3

None

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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A

A'

U

None of these

The negation of given number is a

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Binary operation

Unary operation

Relation

None of these

The number of different ways of describing a set is

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One

Two

Three

Four

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

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3

6

8

15

If p and q are two statements then their conjunction is denoted by

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If A∩B=B, then n(A∩B) is equal to

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n(a)

n(a)+n(c)

n(c)

None of these

Which symbolic notation represent unary operation ?

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-

∨

∧

⇔

A function whose range is just one element is called

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One-one function

Constant function

Onto function

Identity function

The set {x|x∈N∧x-4=0} in tabular form is

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{-4}

{0}

{}

None of these

The set of rational numbers is subset of

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The set of natural numbers

The set of real numbers

The set of integers

The set of whole numbers

If 0 = {1,3,5.......}, then n (0) =

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99

odd integers

Even numbers

Infinite

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none of these

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A onto B

both a & c

A into B

none of these

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A = C

A = B

B = C

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

A'

U

None of these

The graph of a quadratic function is

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Circle

Straight line

Parabola

Triangle

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