Question # 1

a.a^-1 = a^-1.a = 1 is a

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Commutative law of multiplication

Multiplicative identity

Associative law of multiplication

Multiplicative inverse

Every recurring decimal represents

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A natural number

A rational number

An irrational number

A whole number

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Associative law of addition

Commutative law of addition

Additive identity

Closure law of addition

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

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√3 i

√7

-2-i

√5

The identity element with respect to subtraction is

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0

1

-1

Does not exist

3.5+5.4=5.4+3.5 =8.9 this property of addition is called

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additive identity

assoclative property

commulative property

closure property

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

202.04 is an example of

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Recurring decimals

Non-recurring decimals

Terminating decimals

None of these

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(a+bi) - (c+di)=

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(a+b) = (c+d)

(a+c) + i(b+d)

(a - c) + (c- d)i

(a - c)+ (b - d)i

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The order axioms are satisfied by set of

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C

C and R

R

None of these

Every real number is

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a positive integer

a rational number

a negative integer

a complex number

Any whole number can be written as a product of factors which are

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Even number

Odd numbers

Prime number

Rational number

The solution set of the equation |3x + 2| = 5 is

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The multiplicative inverse ofx^(-1) is

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x

a-2

0

1

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Associative law of addition

Commutative law of addition

Additive identity

Closure law of addition

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

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√5

√7

-1-2i

√3

Name the property used in 4.1 + (-4.1) = 0

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Additive inverse

Multiplication inverse

Additive identity

Multiplication identity

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√x = ______ if is a prime number

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Rational no

Natural no

Irrational no

Complex no

Gooch crucible is made of :

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Brass.

Porcelain.

Bronze.

Gold.

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∀ z ∈ C, multipliucative is

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(1,1)

(1,0)

(0,1)

None of these

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additive property

multiplicative property

additive identity

multiplicative identity

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The additive identity of real number is

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1

2

1/2

0

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(x, y)

(kx, y)

(x, ky)

(kx, ky)

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1

-1

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