Question # 1

Any recurring decimal represents a

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Irrational no

Integer

Rational no

None of these

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Associative law of addition

Commutative law of addition

Additive identity

Closure law of addition

In R the left cancellation property w.r.t addition is

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The set of natural no. is closed under

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multiplication

subtraction

difference

division

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(a + b)c = a . c + bc

a + b = b + a

(a + b) + c = a + (b + c)

a(b+ c) = ab + ac

If Z₁ = 1+ i, Z₂ = 2+3i , then |Z₁ -Z₂| =?

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√5

√7

-1-2i

√3

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-3 -2i

3 +2i

1 + 2i

1 - 2i

6 is

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A prime integar

An irrational number

A rational number

An odd integer

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1

-1

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Multiplicative inverse of 0 is

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0

1

±1

Does not exist

Associative law of multiplication

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ab - ba

a(bc) = (ab) c

a(b + c) = ab +ac

(a +b)c = ac + bc

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1

-1

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The set of rationals numbers between 0 and I is

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Finite

Null set

Infinite

None of these

The multiplicative inverse of (a,b) is

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are real no

both are not real

are imaginary no

both are imaginary

The identity element with respect to subtraction is

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0

1

-1

Does not exist

π is ______

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A complex number

A rational number

A natural number

An irrational number

There is no element common in

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N and W

E and W

N and O

Q and Q'

6 is

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A prime integer

An irrational number

A rational number

An odd integer

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A rational number

A irrational number

An even integer

A factor of 36

The multiplicative inverse of 2/3 is

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3/2

-2/3

-3/2

1

If in a set of real no a is multiplicative identity then

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a,a = a²

a,a = 1

a,a = 0

None of these

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The negative square root of 9 can be written as:

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-√9

√9

√18

-√18

If ∀a,b ε R,then a +b ε R is a property

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Closure law of addition

Associative law of addition

Additive inverse

Additive identity

√(-1b) =?

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b i

-i b

b2

i√b

If a and b are real numbers then a+b is also real number this law is called

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associative law of addition

closure law of addition

Distributive law of addition

Commutative law of addition

3/2 is

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An irrational number

Whole number

A positive integer

A rational number

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