Question # 1

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Closure law of addition

Associative law of addition

Additive inverse

Additive identity

If z₁ = 1 + 2i, z₂ = 3 + 4i then

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z₁ > z₂

z₁ = z₂

z₁ < z₂

None of these

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N

r

2r

π

√-1 b=

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b

2

2b

None of these

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In R the number of identity elements w.r.t.'.' is

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One

Two

Three

Four

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0

1

-1

None of these

√(-1b) =?

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b i

-i b

b2

i√b

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Principle of equality of fractions

Rule for product of fractions

Golden rule of fractions

Rule for quotient of fractions

QUQ'

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Multiplicative inverse of 0 is

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0

1

±1

Does not exist

1.4142135... is ______

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A natural number

A rational number

A prime number

An irrational number

For any real numbers x,y,xy=o ⇒

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x ≠ 0 ∧ y ≠ 0

x = 0 ∨ y = 0

x = 0

y = 0

The multiplicative inverse ofx^(-1) is

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x

a-2

0

1

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

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Associative property of addition

Associative property of multiplication

Commutative property of addition

Commutative property of multiplication

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

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Addition

Both a & c

Multiplication

None of these

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

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In R the number of identity element w.r.t '+' is

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One

Two

Three

Four

Name the property used in 4 x (5 x 8) = ( 4 x 5) x 8

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Associative property of addition

Associative property of multiplication

Additive identity

Multiplicative identity

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Associative law of multiplication

Commutative law of addition

Commutative law of multiplication

Associative law of addition

The multiplicative inverse of 0 is

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1

-1

0

Does not exist

14 is not a

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Prime number

Whole number

Even number

Real number

Total number of subsets that can be formed out of the set {a,b,c} is

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1

4

8

12

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The square roots of negative numbers is called

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Real no

Complex no

Positive no

Negative no

202.04 is an example of

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Recurring decimals

Non-recurring decimals

Terminating decimals

None of these

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

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(4, 4)

(10, 4)

(9, -5)

(7, 3)

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Associate law of addition

Commutative law of addition

Additive identity

Closure law of addition

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

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Commutative law of multiplication

Multiplication identity

Associative law of multiplication

Multiplication inverse

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