Question # 1

For any set B, BUB' is

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Is set B

Set B'

Universal set

None of these

Which of the following has the same value as i113

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i

-1

-i

1

Every set is an improper subset of

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Empty set

Equivalent set

Itself

Singleton set

Which symbolic notation represent unary operation ?

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-

∨

∧

⇔

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If C={p/p < 18, p is a prime number}, then C =

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{2,3,4,.........17}

{2,4,6,8................16}

{1,3,5,7,9,11,13,15,17}

{3,6,9,12,15}

If n(X) = 18, n(X∩Y) = 7, n(X∪ Y) = 40 then n(Y) =

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1

12

5

29

The set {Z\ {0} } is group w.r.t

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Addition

Multiplication

Division

Subtraction

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The function whose range consists of just one element is called

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One-One Function

Identity Function

Onto Function

Constant Function

Write down the power set of {9, 11}

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(A ∩ B)c =

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A∩ B

(A ∪ B)c

Ac∪Bc

Φ

The graph of a linear function is

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a circle

triangle

a straight line

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

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One-one function

Constant function

Onto function

Quadratic function

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

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A

B

U

None of these

If A = {x/x is a positive integer and 4≤x<23}, then A=

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{1,2,3,4,5,6,7}

{4,5,6...........22}

{1,2,3,.........23}

{1,2,3,4,5}

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A

A'

U

U'

The set {{a,b}} is

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Infinite set

Singleton set

Two points set

None

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ECAT Mathematics Chapter 23 MCQs With Answers

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