Question # 1

If f is a function from A to B, then f is onto function if:

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Range f≠ A

Range f = B

Dom f = A

Second element of all ordered pairs contained in f is not repeated.

The relation R = {(1,2),(2,3),(3,3),(3,4)} IS:

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Not a function

Onto function

One-One function

Into function

If B={1,2,100} and C = {2,100}, then B∩C = ________

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{1,2}

{1,2,100}

{2}

{2,1}

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

The point (4,-6) lies in..................quadrant.

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I

II

III

IV

The complement of∪ is................

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∪

∅

impossible

Union

E - O = ..................

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∅

O

E

Z

Which of the following is De-Morgan's law?

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(A∪ B)∪ C = A∪ ( B∪ C)

(A∩B)^C= A^c∪ B^c

A∪ (B∩ C) = ( A∪ B)∩ (A∪ C)

A∩(B∪ C) = (A∩B)∪(A∩C)

A set having only one member.

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Empty set

Power set

Singleton set

Sub set

if A∩ b =∅, then set A and B are .................sets.

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sub

over kaooubg

Disjoint

Power

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

Power set of an empty set is.

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∅

{a}

{∅,{a}}

{∅}

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}

The relation {(a,b),(b,c),(a,d)} is....................................

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A function

Not a function

Range

Domain

O∪ E = ................

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∅

O

E

Z

Formula of variance is group data is:

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Mathematics 10th Class English Medium Unit 5 Online Test MCQs With Answers

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