Question # 1

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Associative law of addition

Commutative law of addition

Additive identity

Closure law of addition

The set {0,-1} hold closure property under

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Addition

Both a & c

Multiplication

None of these

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The additive identity of real number is

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1

2

1/2

0

The multiplicative inverse ofx^(-1) is

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x

a-2

0

1

i³=

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-1

i

-i

1

It is not possible to find the exact value of

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π

√9

∛27

√1

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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

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(x, y)

(kx, y)

(x, ky)

(kx, ky)

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Principle of equality of fractions

Rule for product of fractions

Golden rule for fractions

Rule for quotient of fractions

The polar form of complex number x ≠ I y =

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r cos θ+ r sin θ

r cos θ+ is sin θ

cos θ+ r sin θ

i cos θ+ i sin θ

The property used in -3 <-2 ⇒0 <1

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Commutative property

Additive property of inequality

Additive inverse

Additive identity

If z₁= 2 + 6i and z₂= 3 + 7i, then which expression defines the product of z₁and z₂?

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36 + (-32)i

-36 + 32i

6 + (-11)1

0, +(-12)i

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None of these

Name the property used in 1000 x 1 = 1000

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additive inverse

multiplicative inverse

additive identity

multiplicative identity

Every real number is

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a positive integer

a rational number

a negative integer

a complex number

Additive inverse of - a - b is

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a

-a + b

a - b

a + b

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

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Principle of equality of fractions

Rule for product of fraction

Rule for quotient of fraction

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

√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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i =

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√1

√2

√-2

√-1

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Symmetric property

Cancellation property w.r.t. multiplication

Reflexive property

Transitive property

202.04 is an example of

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Recurring decimals

Non-recurring decimals

Terminating decimals

None of above

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

202.04 is an example of

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Recurring decimals

Non-recurring decimals

Terminating decimals

None of these

The set of rational number is represented by

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W

R

Q'

Q

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ECAT Mathematics Chapter 1 Number System Online Test MCQs With Answers

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