Question # 1

The multiplicative inverse of 1 - 2i is

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real number

complex number

rational number

irrational number

Gooch crucible is made of :

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Brass.

Porcelain.

Bronze.

Gold.

14 is not a

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Prime number

Whole number

Even number

Real number

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-8

8

8i

32

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additive property

multiplicative property

additive identity

multiplicative identity

Every irrational number is

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A real number

A prime number

A natural number

An integer

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The multiplicative inverse of 4 is

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-4

-1/4

1/4

1

The set of rational number is represented by

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W

R

Q'

Q

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1

-1

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Additive property in R

Multiplication property in R

Cancellation property in R

Distribution property in R

Any recurring decimal represents a

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Irrational no

Integer

Rational no

None of these

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additive property

multiplicative property

additive inverse

additive identity

The square roots of negative numbers is called

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Real no

Complex no

Positive no

Negative no

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

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i is equal

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(1 , 0)

(0 , 1)

(1 , 1)

(0 , 0)

Multiplicative inverse of "1" is

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0

±1

1

{0,1}

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

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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

If P is a whole number greater than 1, which has only P and I are factors. Then P is called

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Wholw number

Prime number

Even number

Odd number

A non-terminating, non-recurring decimal represent

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A natural number

A rational number

An irrational number

A prime number

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Rational

Irrational

Even

Odd

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1

-1

The set of natural no. is closed under

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multiplication

subtraction

difference

division

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Associative law of addition

Commutative law of addition

Additive identity

Closure law of addition

A prime number can be a factor of a square only if it occurs in the square at least

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Once

Thirce

Twice

None of these

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Multiplicative inverse of 0 is

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0

1

±1

Does not exist

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