Question # 1

If A⊆ B the A⋂ B = ______

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A

B

∅

A⋃ B

y co-ordinate of every pint on x-axis is.

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+ve

-Ve

zero

1

If number of elements in se A is 3 and in set B is 2, then number or binary relations in A x B is.

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3

4

7

12

If A⊆ B then A - B is equal to

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A

B

∅

(A∩B)'= _____________

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A'∪B'

A'∩B'

A∩B

A∪B

By definition, which of the following is a set?

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{a,b,c,d}

{1,2,3,2}

{l,m,n,o}

{0,1,2,3,1}

Which of the following is associative law of union?

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A∪ (B ∪ C) = (A∪ B)∪ C

A∩ (B∩C)= (A∩B)∩C

A∪ (B∩ C) = ( A∪ B)∩ (A∪ C)

A∩(B∪ C) = (A∩B)∪(A∩C)

A set with no element is called.

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Subset

Empty set

Singleton set

Super set

Venn diagram was first used by......................

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John Venn

Netwon

Arthur Cayler

John Napier

(A⋃B)⋃C = ________

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A ⋂ (B⋃C)

(A⋃B)⋂C

A⋃ (B⋃C)

A⋂(B⋂C)

The number of elements in the power set of {1,2,3,4}.

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4

8

16

0

If number of elements in set, A is 3 and in set B is 2 then number of binary relations in A x B is:

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2³

2⁶

2⁸

2²

O∩ E = ....................

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∅

O

E

Z

if A and B are disjoint sets , then A∪ B is equal to.

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A

B

∅

B∪ A

If A and B are two disjoint sets then A⋃ b = ______

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A

B

∅

B⋃ A

The harmonic mean of the observation 0,15,12, is:

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3.7

7.3

6.7

no harmonic mean

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