Question # 1

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In R, the multiplicative inverse of a is

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0

1

-a

1/a

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Additive property of inequality

Commutative property

Additive inverse

Additive identity

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Closure law of addition

Closure law of multiplication

Commutative law of addition

Commutative law of multiplication

If a set S contains n elements then P (S) has ........ number of elements

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2ⁿ

2ⁿ²

2.n

n²

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x

y

(a-1)-1 =

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a-1

a

-a

None of above

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Additive inverse of - a - b is

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a

-a + b

a - b

a + b

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If z = (x,y) , then z ̅ =

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(-x,y)

(x,-y)

(-x, -y)

None of these

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Associative property of addition

Associative property of multiplication

Commutative property of addition

Commutative property of multiplication

√x = ______ if is a prime number

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Rational no

Natural no

Irrational no

Complex no

The multiplicative inverse of 2/3 is

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3/2

-2/3

-3/2

1

The property used in -3 <-2 ⇒0 <1

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Commutative property

Additive property of inequality

Additive inverse

Additive identity

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3/4 is ______

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An odd number

An even number

A natural number

A rational number

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None of these

The multiplicative inverse of 0 is

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1

-1

0

Does not exist

The set {1, 2, 3, 4, ....} is called

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Set of Natural numbers

Set of whole numbers

Set of rational number

Set of irrational numbers

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A rational number

A natural number

An irrational number

An integer

If Z = (1,2), then Z^-1 =?

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(0.2, 0.4)

(-0.2 ,0.4)

(0.2,-0.4)

(-0.2,-0.4)

The order axioms are satisfied by set of

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C

C and R

R

None of these

Every prime number is also

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Rational number

Even number

Irrational number

Multiple of two numbers

Total number of subsets that can be formed out of the set {a,b,c} is

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1

4

8

12

∀x,y,z ∈ R and z 0,then

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x > y ⇒ xz > yz

x<y ⇒ xz < yz

x < y ⇒ xz > yz

None of these

What is the conjugate of -6 -i?

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-6 +i

6+i

-6 -i

6 -i

i²=

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1

2

-1

0

For each real number, there is a number which is its

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Negative

Possitive

Opposite

Similar

1.4142135... is ______

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A natural number

A rational number

A prime number

An irrational number

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