Question # 1

i⁹ =

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i²

-1

1

i

Any recurring decimal represents a

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Irrational no

Integer

Rational no

None of these

The additive inverse of 1 is

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1

-1

0

Does not exist

A non-terminating, non-recurring decimal represent

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A natural number

A rational number

An irrational number

A prime number

Every prime number is also

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Rational number

Even number

Irrational number

Multiple of two numbers

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i =

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In (x +iy) y is called as

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Imaginary part

Complex number

Real part

None of above

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Reflexive property

Symmetric property

Transitive property

Additive property

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are real no

both are not real

are imaginary no

both are imaginary

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The set of rational number is represented by

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W

R

Q'

Q

The set of rationals numbers between 0 and I is

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Finite

Null set

Infinite

None of these

∀a,b, c ε R ac = bc ⇒ a = b, c ≠ 0 is a

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Symmetric property

Cancellation property w.r.t multiplication

Reflexive property

Transitive property

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

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

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(a,0)

(0,b)

(a,b)

(-a,-b)

For any real numbers x,y,xy=o ⇒

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x ≠ 0 ∧ y ≠ 0

x = 0 ∨ y = 0

x = 0

y = 0

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1

3

2-i

-1

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The product of complex numbers (a,b) and (c,d) is

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(ac, bd)

(ac-bd, ad+bc)

(ab,cd)

(ac+bd,ad-bc)

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)

What is the conjugate of -6 -i

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-6 +i

6 + i

-6 -i

6 -i

If A = {x / x ∈ R ∧ x² - 16 = 0} then A =

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- x

Infinite set

Φ

{-4,4}

Zero is

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An irrational number

A rational number

A negative integer

A positive number

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N

r

2r

π

14 is not a

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Prime number

Whole number

Even number

Real number

If z=(x,y) then z has no multiplicative inverse when

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x ≠ 0, y = 0

x = 0, y = 0

x = 0, y ≠ 0

None of these

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