Question # 1

The value of x, and y, when (x + iy)²= 5 + 4i

Choose an answer

X = 2, y = -1

X = -2, y=1

X = 2, y = -1

X = 2, y = 2

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

Choose an answer

Trichotomy property

Additive property of inequality

Transitive property

Multiplicative property

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

Choose an answer

a = a

a < a

a > a

a²= a

∀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

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

Choose an answer

x ≠ 0, y = 0

x = 0, y = 0

x = 0, y ≠ 0

None of these

1/3 is a decimal

Choose an answer

Recurring

Terminating

Non-terminating

None of the above

Choose an answer

The value of i⁴ⁿ⁺¹

Choose an answer

1

-1

i

i²

Choose an answer

15

15 i

-15 i

-15

Choose an answer

A positive integer

A negative integer

A natural number

An irrational number

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

Choose an answer

∀a,b,c∈R, a >b ∧ b>c ⇒ a >c is

Choose an answer

Trichotomy property

Transitive property

Symmetric property

Additive property

6 is

Choose an answer

A prime integar

An irrational number

A rational number

An odd integer

The identity element with respect to subtraction is

Choose an answer

0

1

-1

Does not exist

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 ε R,a +c = b + c = > a = b

Choose an answer

Reflexive property

Symmetric property

Cancellations property w.r.t. addition

Transitive property

If z = (x,y) , then z ̅ =

Choose an answer

(-x,y)

(x,-y)

(-x, -y)

None of these

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

Choose an answer

x

y

The set {1, 2, 3, 4, ....} is called

Choose an answer

Set of Natural numbers

Set of whole numbers

Set of rational number

Set of irrational numbers

i =

Choose an answer

√1

√2

√-2

√-1

Every natural number is

Choose an answer

A prime number

An irrational number

An integer

An even number

Every recurring decimal represents

Choose an answer

A natural number

A rational number

An irrational number

A whole number

Choose an answer

Reflexive property

Symmetric property

Transitive property

Additive property

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