Question # 1

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Reflexive property

Symmetric property

Transitive property

Additive property

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

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Rule of quotient of fraction

Golden rule of fraction

Rule for product of fraction

Principle for equality of fraction

Union of the sets of rational and irrational numbers is called 6th set of

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Natural numbers

Real numbers

Whole numbers

Prime numbers

Decimal part of irrational number is

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Terminating

Repeating only

Neither repeating nor terminating

Repeating and terminating

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

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(7, 9) + (3, -5) =

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(4, 4)

(10, 4)

(9, -5)

(7, 3)

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Associate law of addition

Commutative law of addition

Additive identity

Closure law of addition

The√ is used for the

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Positive square root

Negative square root

+ve and -ve square root

Whole number

The multiplicative inverse of 1 - 2i is

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If z₁= 2 + 6i and z₂= 3 + 7i, then which expression defines the product of z₁and z₂?

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36 + (-32)i

-36 + 32i

6 + (-11)1

0, +(-12)i

Gooch crucible is made of :

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Brass.

Porcelain.

Bronze.

Gold.

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∀x,y,z ∈ R and z 0,then

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x > y ⇒ xz > yz

x<y ⇒ xz < yz

x < y ⇒ xz > yz

None of these

√x = ______ if is a prime number

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Rational no

Natural no

Irrational no

Complex no

The polar form of complex number x ≠ I y =

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r cos θ+ r sin θ

r cos θ+ is sin θ

cos θ+ r sin θ

i cos θ+ i sin θ

In R, the additive inverse of a is

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0

1

-a

1/a

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

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x = 2, y = -1

x = -2, y = 1

x = 2, y = -i

x = 2, y = 2

A non-terminating non_recurring decimal represents an

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Irrational no

Both a & c

Rational no

None of these

QUQ, =

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N

R

W

Z

∀a,b, c ε R,a +c = b + c = > a = b

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Reflexive property

Symmetric property

Cancellations property w.r.t. addition

Transitive property

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Principle of equality of fractions

Rule for product of fractions

Golden rule for fractions

Rule for quotient of fractions

The set of rationals numbers between 0 and I is

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Finite

Null set

Infinite

None of these

Associative law of multiplication

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ab = ba

a(bc) = (ab) c

a(b+c) = ab + ac

(a + b)c = ac + bc

i³=

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-1

i

-i

1

What is the conjugate of -7 -2i?

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-7 + 2i

7 + 2i

7 -2i

None of these

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1

-1

The symbol of irrational is

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W

N

Q

Q'

i =

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Every real number is

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a positive integer

a rational number

a negative integer

a complex number

6 is

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A prime integar

An irrational number

A rational number

An odd integer

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

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