Question # 1

If B ={x/x€ Z ^ - 3 < x < 6}, then n (B) =

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5

{-3,-2,-1,0,1,2,3,4,5,6}

8

9

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none of these

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The set { {a, b} } is

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Infinite set

Singleton set

Two points set

Empty set

Which of the following is the subset of all sets?

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Z is the set of integers, (z, *) is a group with a * b = a + b + 1, a, b∈G. then inverse of a is

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-a

a + 1

-2 -a

None of these

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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Singleton set

A set with two points

Empty set

None of these

If P = {x/x = p/q where p,q∈ Z and q≠ 0}, then P is the set of

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Irrational numbers

Even numbers

Rational numbers

Whole numbers

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None of these

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a-b=ab

ab=a

a+b=ab

The set of the first elements of the ordered pairs forming a relation is called its

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Function on B

Range

Domain

A into B

For any set B, BUB' is

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Is set B

Set B'

Universal set

None of these

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

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1

-1

+-1

0

if A = (x/x€ Q˄ 0 < x < 1}, the A is

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Infinite set

Finite set

Set of rational numbers

Set of real numbers

A - B = ______

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{x|x∈R∧x≠x} is a

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Infinite set

Null set

Finite set

None of these

Empty set is

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Not the member of real numbers

Infinite set

Finite set

Not subset of every set

If z1 = 2 + 6i and z2 = 3 + 7i then which expression defines the product of z1 and z2

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36 +(-32)i

-36+32i

6+(-11)i

0, +(-12)i

The set of natural numbers is a subset of

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{1, 2, 3, .... 100}

The set of whole numbers

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

None of these

If A=B, then

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A⊂B and B⊂A

A⊆B and B⊈A

A⊆B and B⊆A

None of these

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The set {x +iy / x, y ∈ Q} forms a group under the binary operation of

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Addition

Multiplication

Division

Both addition and multiplication

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

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One-one function

Constant function

Onto function

Quadratic function

The many subset can be formed from the set {a,b,c,d}

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8

4

12

16

A disjunction of two statement p and q is true

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p is false

q is false

Both p and q are false

One of p and q is true

Additive inverse of -a -b is

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a

-a + b

a - b

a + b

Which of the following is the definition of singleton

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The objects in a set

A set having no element

A set having no subset

None of these

A conditional "if p then q" is denoted by

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{0} is a

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Empty set

Singleton set

Zero set

Null Set

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Mathematics ECAT Pre Engineering Chapter 2 Set, Functions and Groups Online Test MCQs With Answers

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