Question # 1

The set {1,-1, i, -i} form a group under

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Addition

Multiplication

Subtraction

None

If #n = (n-5)²+ 5, then find #3 x #4.

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54

12

4

9

The statement that a group can have more than one identity elements is

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True

False

Ambiguous

Some times true

If p and q are two statements then their biconditional 'p if q' is denoted by

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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

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For any set X, X∪X is

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X

X'

Φ

Universal Set

The statement that a group can have more than one identity elements is

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True

False

Fallacious

Some times true

Decimal part of irrational number is

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Terminating

Repeating only

Neither repeating nor terminating

Repeating and terminating

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A

B

U

None of these

The multiplicative inverse of x such that x = 0 is

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-x

Does not exist

1/x

±1

A statement which is either true or false is called

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Induction

Deduction

Propositicon

Logic

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

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Function on B

Range

Domain

A into B

Write down the power set of {9, 11}

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If f:A→B is an injective function and second elements of no two of its ordered pairs are equal, then f is called

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1-1 and onto

Bijective

1-1 and into

None of these

0 is a symbol of

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singleton set

Empty set

Equivalent set

Infinite set

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An empty set

Universal set

A singleton set

None of these

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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 set of integer is

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Finite group

A group w.r.t addition

A group w.r.t multiplication

Not a group

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A finite set

An infinite set

An empty set

None of these

The graph of a quadratic function is

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Circle

Straight line

Parabola

Triangle

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A

B

A'

None of these

Power set of X i.e P(X)..........under the binary operation of union U

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Forms a group

Does not form a group

Has no identity element

Infinite set although X is infinite

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

For any set B,B∪B' is

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Is set B

Set B'

Universal set

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An empty set

Universal set

A singleton set

None of these

The set of all positive even integers is

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Not a group

A group w.r.t. subtraction

A group w.r.t. division

A group w.r.t. multiplication

Multiplicative inverse of "1" is

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0

-1

1

{0, 1}

Two sets A and B are said to be disjoint if

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