Question # 1

Choose an answer

None of these

Choose an answer

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

Choose an answer

Commutative law of multiplication

Multiplicative identity

Associative law of multiplication

Multiplicative inverse

Every real number is

Choose an answer

A complex number

A rational number

A natural number

A prime number

The additive inverse of 2/3 is

Choose an answer

3/2

-2/3

-3/2

0

If z₁ = (a,b), z₂=(c,d), then z₁ z₂ = -------------------

Choose an answer

(ac,bd)

(ac+bd, ad-bc)

(ac-bd , ad+bc)

(ac-bd , ad-bc)

Name the property used in a (b-c) = ab - ac

Choose an answer

commutative property of multiplication

distributive property of multiplication

associative property of multiplication

multiplicative inverse

Choose an answer

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

Choose an answer

(ac, bd)

(ac-bd, ad+bc)

(ab,cd)

(ac+bd,ad-bc)

Choose an answer

Name the property used in 100 + 0 = 100

Choose an answer

Additive inverse

Multiplicative inverse

Additive identity

Multiplicative identity

∀a,b,c∈R, a >b ∧ b>c ⇒ a >c is

Choose an answer

Trichotomy property

Transitive property

Symmetric property

Additive property

Choose an answer

If 0 = R, thenthe additive inverse of a is

Choose an answer

1/9

^1/-9

a

-a

In R, the multiplicative inverse of a is

Choose an answer

0

1

-a

1/a

Choose an answer

24 can be written as a product of

Choose an answer

Odd factors

Even factors

Whole factors

Prime factors

The polar form of complex number x ≠ I y =

Choose an answer

r cos θ+ r sin θ

r cos θ+ is sin θ

cos θ+ r sin θ

i cos θ+ i sin θ

Choose an answer

Commutative law of addition

Associative law of addition

Additive identity

Additive inverse

Choose an answer

Principle of equality of Fractions

Rule for product of fraction

Golden rule of fraction

Rule of quotient of Fraction

The negative square root of 9 can be written as:

Choose an answer

-√9

√9

√18

-√18

1/3 is a decimal

Choose an answer

Recurring

Terminating

Non-terminating

None of the above

The square root of every incomplete square is an

Choose an answer

Rational numbers

Even numbers

odd numbers

Irrational numbers

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

Choose an answer

One

Two

Three

Four

Choose an answer

Additive property of inequality

Commutative property

Additive inverse

Additive identity

If a and b are real numbers then a+b is also real number this law is called

Choose an answer

associative law of addition

closure law of addition

Distributive law of addition

Commutative law of addition

The multiplicative inverse of -3i is

Choose an answer

3i

-3i

-1/3i

1/3 i

Every natural number is

Choose an answer

A prime number

An irrational number

An integer

An even number

Choose an answer

Associate law of addition

Commutative law of addition

Additive identity

Closure law of addition

I is not

Choose an answer

Real number

Natural number

Prime Number

Whole Number

202.04 is an example of

Choose an answer

Recurring decimals

Non-recurring decimals

Terminating decimals

None of above

More Classes

Other Links

ECAT Pre General Science Mathematics Chapter 1 Number System Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer