Question # 1

The multiplicative inverse of 4 is

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-4

-1/4

1/4

1

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

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(0,ac)

(ac, 0)

(0,0)

(a, c)

Geometrically, the modulus of a complex number represents its distance from the

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Point (1, 0)

Point (0, 1)

Point (1, 1)

Point (0, 0)

Additive inverse of - a - b is

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a

-a + b

a - b

a + b

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 = -1

X = 2, y = 2

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

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Addition

Both a & c

Multiplication

None of these

The symbol of irrational is

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W

N

Q

Q'

√11 is

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an irrational number

Rational number

odd number

Negative number

i⁹ =

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i²

-1

1

i

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Closure law of addition

Associative law of addition

Commutative law of multiplication

Associative law of multiplication

π is the ration of

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Area of a circle to its diameter

Area of a circle to its radius

Circumference of a circle to its diameter

Circumference of circle to its radius

In R, the additive inverse of a is

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0

1

-a

1/a

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

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(ac, bd)

(ac-bd, ad+bc)

(ab,cd)

(ac+bd,ad-bc)

Every recurring decimal represents

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A natural number

A rational number

An irrational number

A whole number

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Commutative law of addition

Associative law of addition

Additive identity

Additive inverse

For each real number, there is a number which is its

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Negative

Possitive

Opposite

Similar

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None of these

24 can be written as a product of

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Odd factors

Even factors

Whole factors

Prime factors

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Principle of equality of fractions

Rule for product of fractions

Golden rule for fractions

Rule for quotient of fractions

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(a + b)c = ac + bc

a + b = b + a

(a + b) + c = a + (b + c)

a(b +c) = ab + ac

∀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

Which of the following has the same value as i¹¹³?

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i

-1

-i

1

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

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xy < o

xy = o

xy > o

None of these

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Commutative law of multiplication

Closure law of multiplication

Associative law of multiplication

Multiplication identity

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The sum of complex number (a,b) and (c,d) is

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QUQ'

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∀x,y∈R and x> 0 , y>0, if x > y

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None of these

Rational number is a number which can be written as a terminating decimal fraction or a

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Non-terminating decimal fraction

Non-recurring

Recurring decimal fraction

a, b and c

Every prime number is also

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Rational number

Even number

Irrational number

Multiple of two numbers

3.5+5.4=5.4+3.5 =8.9 this property of addition is called

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additive identity

assoclative property

commulative property

closure property

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