Question # 1

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(a + b)c = a . c + bc

a + b = b + a

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

a(b+ c) = ab + ac

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

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(4, 4)

(10, 4)

(9, -5)

(7, 3)

2.333....is a

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Irrational no

Complex no

Rational no

None of these

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

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Addition

Both a & c

Multiplication

None of these

202.04 is an example of

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Recurring decimals

Non-recurring decimals

Terminating decimals

None of these

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Name the property used in 4 + 9 = 9 + 4

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Associative property of addition

Commutative property of addition

Distributive property

Additive identity

∀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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Which of the following has the same value as i¹¹³?

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i

-1

-i

1

Such fraction which can not be written in the form ofp⁄q where p,q and q≠ 0,such fractions are called.

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Fractinal numbers

Rational Numbers

Even Numbers

Whole Numbers

The multiplicative inverse of 1 - 2i is

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Additive property in R

Multiplication property in R

Cancellation property in R

Distribution property in R

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real part of z

imaginary part of z

conjugate of z

modulus of z

What is the conjugate of -6 -i?

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-6 +i

6+i

-6 -i

6 -i

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

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(ac,bd)

(ac+bd, ad-bc)

(ac-bd , ad+bc)

(ac-bd , ad-bc)

It is not possible to find the exact value of

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π

√9

∛27

√1

The decimal fraction in which we have finite number of digits in its decimal part is called.

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recurring decimal fraction

Non terminating faction

Non recurring fraction

terminating decimal fraction

In R, the additive inverse of a is

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0

1

-a

1/a

If a set S contains n elements then P (S) has ........ number of elements

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2ⁿ

2ⁿ²

2.n

n²

The identity element with respect to subtraction is

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0

-1

0 and 1

None of thes

The equation |x + 4| = x has solution

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x = -2

x = 2

x = -4

x = 4

The multiplicative inverse of -3i is

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3i

-3i

-1/3i

1/3 i

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For any real numbers x,y,xy=o ⇒

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x ≠ 0 ∧ y ≠ 0

x = 0 ∨ y = 0

x = 0

y = 0

What is the conjugate of -6 -i

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-6 +i

6 + i

-6 -i

6 -i

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i²=

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1

2

-1

0

The symbol of irrational is

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W

N

Q

Q'

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