Question # 1

The complement of∪ is................

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∪

∅

impossible

Union

(A⋃B)⋃C = ________

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A ⋂ (B⋃C)

(A⋃B)⋂C

A⋃ (B⋃C)

A⋂(B⋂C)

The number of elements of the power set {a,b} are.

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1

2

3

4

The domain of R = {(0,2),(2,3),(3,3)(3,4)} is.

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{0,3,4}

{0,2,3}

{0,2,4}

{2,3,4}

A collection of well-defined distinct objects is called.

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subset

Power set

Set

None of these

A collection of well-defined distinct object is called:

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Subset

Power set

Set

None of these

Sum of the deviations of values x from its mean is always ''i.e ∑(x-x̅)’is to equal:

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itself

zero

median

mode

If A⊆ B the A⋂ B = ______

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A

B

∅

A⋃ B

If set A has all its elements common with set B then set A is called...............set.

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Sub

Overlapping

Disjoint

Super

If A ={0,1,2}, B={2,3,4,5} , then A∪B are:

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Empty sets

Equal sets

Overlapping sets

Disjoint set

If A⊆ B and B⊆ a , then

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A = B

A≠ B

A∩ B =∅

A∪ B =∅

The Range of R

={(1,3),(2,2),(3,1)(4,4)} is.

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{1,2,4}

{3,2,4}

{1,2,3,4}

{1,3,4}

Power set of empty set.

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∅

{a}

{∅,{a}}

{∅}

If A⊆ B then A - B is equal to

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A

B

∅

The relation {(1,2),(2,3),(3,3)(3,4)} is.

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Onto function

Into function

Not a function

One-One function.

Which of the following is commutative law?

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A∪ (B ∪ C) = (A∪ B)∪ C

A∩ (B∩C)= (A∩B)∩C

A∪ B = B ∩ A

(A ∪ b)^c = A^c ∩ B^c

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