Question # 1

In (x + iy), y is called as

Choose an answer

Imaginary part

Complex number

Real part

None of above

3/4 is ______

Choose an answer

An odd number

An even number

A natural number

A rational number

(a,0) x (c,0) =

Choose an answer

(0,ac)

(ac,0)

(0,0)

(a,c)

√11 is

Choose an answer

an irrational number

Rational number

odd number

Negative number

The additive inverse of 1 is

Choose an answer

1

-1

0

Does not exist

If Z = (1,2), then Z^-1 =?

Choose an answer

(0.2, 0.4)

(-0.2 ,0.4)

(0.2,-0.4)

(-0.2,-0.4)

(a^-1)^-1=

Choose an answer

a^-1

a

-a

None of above

The negative square root of 9 can be written as:

Choose an answer

-√9

√9

√18

-√18

The solution set of the equation |3x + 2| = 5 is

Choose an answer

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

Choose an answer

i =

Choose an answer

√1

√2

√-2

√-1

2/9,5/7∈ R,(2│9)(5│7)=10/63∈R this property is called

Choose an answer

Associative property

Identity property

Commutative property

Closure property w.r.t multiplication

Choose an answer

Set of whole number

Rational Numbers

Complex numbers

Whole numbers

Choose an answer

Rule of quotient of fraction

Golden rule of fraction

Rule for product of fraction

Principle for equality of fraction

The order axioms are satisfied by set of

Choose an answer

C

C and R

R

None of these

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

Choose an answer

Addition

Both a & c

Multiplication

None of these

Choose an answer

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

Choose an answer

Symmetric property

Cancellation property w.r.t multiplication

Reflexive property

Transitive property

Any recurring decimal represents a

Choose an answer

Irrational no

Integer

Rational no

None of these

∀x,y∈ R and x < 0, y < 0, which one is true

Choose an answer

xy < o

xy = o

xy > o

None of these

Choose an answer

A natural number

A rational number

An irrational number

A whole number

What is the conjugate of -6 -i?

Choose an answer

-6 +i

6+i

-6 -i

6 -i

Choose an answer

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

Choose an answer

Additive property

Transitive property

Trichotomy property of inequality

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

Choose an answer

(a, 0)

(0, b)

(a, b)

(-a, -b)

Choose an answer

Rational

Irrational

Even

Odd

If 0 = R, thenthe additive inverse of a is

Choose an answer

1/9

^1/-9

a

-a

In (x +iy) y is called as

Choose an answer

Imaginary part

Complex number

Real part

None of above

1/3 is a decimal

Choose an answer

Recurring

Terminating

Non-terminating

None of the above

More Classes

Other Links

ECAT 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