Question # 1

Name the property used in 100 + 0 = 100

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Additive inverse

Multiplicative inverse

Additive identity

Multiplicative identity

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A rational number

A natural number

An irrational number

An integer

The set of rational number is represented by

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W

R

Q'

Q

In set builder notation the set {0,1,2,........100} can be written as

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{x / xε B ∧ x ≤ 100}

{x / x ∈ W ∧ x < 101}

{x / x ∈ Z ∧ x < 101}

The set of first 100 whole numbers

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Associative law of addition

Commutative law of addition

Additive identity

Closure law of addition

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

Additive inverse of - a - b is

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a

-a + b

a - b

a + b

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

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

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Reflexive property

Symmetric property

Cancellations property w.r.t. addition

Transitive property

In (x + iy), y is called as

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Imaginary part

Complex number

Real part

None of above

∀a,b ε R, ab = be is a

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Commutative law of multiplication

Closure law of multiplication

Associative law of multiplication

Multiplicative identity

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z is purely imaginary

a is any complex number

z is real

None of these

i^-(4n+2)= -------------------------------

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1

i

-1

-i

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(7,9) +(3,-5) =

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(4,4)

(10,4)

(9,-5)

(7,3)

Associative law of multiplication

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ab - ba

a(bc) = (ab) c

a(b + c) = ab +ac

(a +b)c = ac + bc

√(-1b) =?

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b i

-i b

b2

i√b

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The equation |x + 4| = x has solution

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x = -2

x = 2

x = -4

x = 4

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Additive property of inequality

Commutative property

Additive inverse

Additive identity

The square root of 2i - 20i is

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±(5 - 2i)

±(5+ 2i)

(5 - 2i)

None of these

The multiplicative inverse of 4 is

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-4

-1/4

1/4

1

QUQ'

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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)

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Reflexive property

Symmetric property

Transitive property

Additive property

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Principle of equality of fractions

Rule for product of fraction

Rule for quotient of fraction

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Associative law of addition

Commutative law of addition

Additive identity

Closure law of addition

For any real numbers x,y,xy=o ⇒

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x ≠ 0 ∧ y ≠ 0

x = 0 ∨ y = 0

x = 0

y = 0

3/4 is ______

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An odd number

An even number

A natural number

A rational number

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