Question # 1

The multiplicative inverse of 0 is

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1

-1

0

Does not exist

Every whole number is

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A real number

An irrational number

A prime number

A negative integer

The square root of every incomplete square is an

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Rational numbers

Even numbers

odd numbers

Irrational numbers

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

24 can be written as a product of

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Odd factors

Even factors

Whole factors

Prime factors

Which of the following has the same value as i¹¹³?

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i

-1

-i

1

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∀ a ε R ∃ o ε R such that a + v = 0 + a = a is property of

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Commutative law of addition

Associative law of addition

Additive identity

Additive inverse

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Rule of quotient of fraction

Golden rule of fraction

Rule for product of fraction

Principle for equality of fraction

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

What is the conjugate of -6 -i

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-6 +i

6 + i

-6 -i

6 -i

√2 +√3 +√5) = (√2 +√3 +√5: this property is called

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associative property w.r.t addition

commutative property

Closure property w.r.t addition

Additive identity

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If z₁ = (a,b), z₂=(c,d), then z₁ z₂ = -------------------

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(ac,bd)

(ac+bd, ad-bc)

(ac-bd , ad+bc)

(ac-bd , ad-bc)

a >b, b >c ⇒a >c is a

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Multiplicative property

Additive property

Trichotomy property

Transitive property of inequality

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Additive property of inequality

Commutative property

Additive inverse

Additive identity

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Principle of equality of Fractions

Rule for product of fraction

Golden rule of fraction

Rule of quotient of Fraction

Name the property used in 4 + 9 = 9 + 4

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Associative property of addition

Commutative property of addition

Distributive property

Additive identity

i³ =

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-1

i

-i

1

∀x, y ∈ R, either x = y or x > y or x < y is

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Transitive property

Reflexive property

Trichotomy property

None of these

In (x +iy) y is called as

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Imaginary part

Complex number

Real part

None of above

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Commutative law of multiplication

Closure law of multiplication

Associative law of multiplication

Multiplication identity

I is not

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Real number

Natural number

Prime Number

Whole Number

Which element is the additive inverse of (a,b) in Complex numbers

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(a,0)

(0,b)

(a,b)

(-a,-b)

√23 is

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A rational number

A irrational number

An even integer

A factor of 36

If P is a whole number greater than 1, which has only P and I are factors. Then P is called

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Wholw number

Prime number

Even number

Odd number

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A subset of set of complex number whose elements are of the form (a,0) is called

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Real number

Complex number

Rational number

Irrational number

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1

-1

Such fraction which can not be written in the form ofp⁄q where p,q and q≠ 0,such fractions are called.

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Fractinal numbers

Rational Numbers

Even Numbers

Whole Numbers

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ECAT Mathematics Chapter 1 Number System Online Test MCQs With Answers

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