Question # 1

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

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a constant function

linear function

quadratic funtion

none of these

(A∩Bc)c= -------------------------

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Ac∪Bc

Ac∪B

Ac∩B

None of these

The set of all positive even integers is

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Not a group

A group w.r.t. subtraction

A group w.r.t. division

A group w.r.t. multiplication

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Conclusion

Implication

Antecedent

Hypothesis

Given X,Y are any two sets such that number of elements in set X = 28, number of elements in set Y = 28, and number of elements in set X∪Y = 54, then number of elements in set X ∩ Y =

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4

3

2

1

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None of these

A∪(A∪B)= --------------------

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B

A

A∪B

None of these

A set having only one element is called

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An empty set

Universal set

A singleton set

A power set

Multiplicative inverse of 0 is

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0

1

+-1

Does not exist

The set of complex numbers forms a group under the binary operation of

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Addition

Multiplication

Division

Subtraction

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A

B

U

None of these

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A

A'

U

U'

The set {1,-1,i,-i}

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Form a group w.r.t addition

Form a group w.r.t multiplication

Does not form a group w.r.t multiplication

Not closed under multiplication

The set (Z, +) forms a group

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Forms a group w.r.t addition

Forms a group w.r.t multiplication

Non commutative group w.r.t multiplication

Doesn't form a group

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Singleton set

A set with two points

Empty set

None of these

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If n(A) = n then n(P(A)) is

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2n

n²

n/2

2ⁿ

A conditional "if p then q" is denoted by

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The graph of a linear function is

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a circle

triangle

a straight line

none of these

The multiplicative inverse of -1 in the set {1-, 1} is

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1

-1

0

Does not exist

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ECAT Mathematics Chapter 23 MCQs With Answers

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