Question # 1

Geometrically, the modulus of a complex number represents its distance from the

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Point (1, 0)

Point (0, 1)

Point (1, 1)

Point (0, 0)

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Every real number is

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A complex number

A rational number

A natural number

A prime number

The multiplicative inverse of 1 - 2i is

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Every real number is

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a positive integer

a rational number

a negative integer

a complex number

6 is

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A prime integer

An irrational number

A rational number

An odd integer

√23 is

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A rational number

A irrational number

An even integer

A factor of 36

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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

A prime number can be a factor of a square only if it occurs in the square at least

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Once

Thirce

Twice

None of these

If 0 = R, thenthe additive inverse of a is

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1/9

^1/-9

a

-a

3/4 is ______

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An odd number

An even number

A natural number

A rational number

Every irrational number is

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A real number

A prime number

A natural number

An integer

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(x, y)

(kx, y)

(x, ky)

(kx, ky)

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i =

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√1

√2

√-2

√-1

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additive property

multiplicative property

additive identity

multiplicative identity

√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

√2 is a number

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Rational

Irrational

Even

Odd

A non-terminating, non-recurring decimal represent

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A natural number

A rational number

An irrational number

A prime number

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A natural number

A rational number

An irrational number

A whole number

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Closure law of addition

Associative law of addition

Commutative law of multiplication

Associative law of multiplication

π is the ration of

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Area of a circle to its diameter

Area of a circle to its radius

Circumference of a circle to its diameter

Circumference of circle to its radius

The square root of every incomplete square is an

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Rational numbers

Even numbers

odd numbers

Irrational numbers

Multiplicative inverse of "1" is

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0

±1

1

{0,1}

If A = {x / x ∈ R ∧ x² - 16 = 0} then A =

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- x

Infinite set

Φ

{-4,4}

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∀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

(a,b) +(-a,-b) =

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(0,0)

(a,b)

(-a,-b)

(1,1)

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

2/9,5/7∈ R,(2│9)(5│7)=10/63∈R this property is called

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Associative property

Identity property

Commutative property

Closure property w.r.t multiplication

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-8

8

8i

32

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ECAT Mathematics Chapter 1 Number System Online Test MCQs With Answers

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