Question # 1

i³=

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-1

i

-i

1

Which element is the additive inverse of (a, b) in Complex numbers?

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(a, 0)

(0, b)

(a, b)

(-a, -b)

What is the conjugate of -7 -2i ?

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-7 + 2i

7 +2i

7 -2i

√53

4/√49 is a

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Irrational Number

Prime Number

Rational number

Whole number

In (x + iy) x is the known as

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Imaginary part of complex number

Real part of complex number

Complex number

None of above

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There is no element common in

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N and W

E and W

N and O

Q and Q'

For any real numbers x,y,xy=o ⇒

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x ≠ 0 ∧ y ≠ 0

x = 0 ∨ y = 0

x = 0

y = 0

0 (zero) is

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An irrational number

A rational number

A negative integer

A positive number

The equation |x +4| = x has solution

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x = -2

x = 2

x = -4

x = 4

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N

r

2r

π

If in a set of real no a is multiplicative identity then

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a,a = a²

a,a = 1

a,a = 0

None of these

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

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One

Two

Three

Four

If a > b or a < b than a = b is a

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Additive property

Transitive property

Trichotomy property of inequality

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

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A rational number

A irrational number

An even integer

A factor of 36

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-8

8

8i

32

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

2.333....is a

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Irrational no

Complex no

Rational no

None of these

∀ a ε R ∃ o ε R such that a + v = 0 + a = a is property of

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Commutative law of addition

Associative law of addition

Additive identity

Additive inverse

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Some of two real numbers is also a real number , this property is called:

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Commutative property w.r.t addition

Closure property w.r.t. addition

Associative property w.r.t. addition

Distributive property w.r.t addition

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

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(x, y)

(kx, y)

(x, ky)

(kx, ky)

Every whole number is

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A real number

An irrational number

A prime number

A negative integer

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Commutative property of addition

Closure property of addition

Additive inverse

Associative property w.r.t. to addition

0.25 is ______

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An irrational number

A natural number

A prime number

A rational number

The real number system contains.

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Positive Numbers

Negative numbers

Zero

(option a, b and c)

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The identity element with respect to subtraction is

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0

-1

0 and 1

None of thes

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