Question # 1

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 function f{(x, y) | y = ax²+ bx + c} is

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One-one function

Constant function

Onto function

Quadratic function

If B-A≠φ , then n(B-A) is equal to

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n(a)+n(c)

n(c)-n(a)

n(a)-n(c)

None of these

If D = {a} , the P(D) =

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{a}

∅

{∅,{a}}

{∅,a}

The set of real numbers is a subset of

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The set of natural numbers

The set of rational numbers

The set of integers

The set of complex numbers

The geometrical representation of a linear function is

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Circle

Parabola

Straight lie

None of these

If A is a subset of B and B contains at least one element which is not an element of A, then A is said to be

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Improper subset of B

Super set of B

Proper subset of B

None of these

If B⊆ A, then complement of B in A is = -----------------------

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A-B

A∩B

B-A

A∪B

Two sets A and B are said to be disjoint if

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Every set is an improper subset of

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Empty set

Equivalent set

Itself

Singleton set

Which of the following is the subset of all sets

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Φ

{1,2,3}

{Φ}

{0}

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ECAT Pre General Science Mathematics Chapter 2 Set, Functions and Groups Online Test MCQs With Answers

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