Question # 1

The additive inverse of 0 is

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1

-1

0

Does not exist

The negation of a number

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a relation

a function

unary operation

binary operation

The multiplicative inverse of 0 is

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1

-1

0

Does not exist

In R, the multiplicative inverse of a is

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0

1

-a

1/a

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The distance s of a particle in time t is given by s = t³- 6t²- 4t - 8. Its acceleration vanishes at t =

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1

2

3

4

A circle which touches one side of a triangle extermally and the other two sides produced is called

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In-circle

Circumcircle

e-circle

Point circle

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30°

45°

60°

120°

For different values of k equation 4x+5y =k represents

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Parallel lines

Lines parallel to x -axis

Perpendicular lines

Lines parallel to y -axis

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Only one real solution

Exactly three real solution

Exactly one rational solution

Non-real roots

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(1,7/3)

(1, 7/5)

(1, 11/7)

(1, 3/5)

The period of|sin⁡2x| is

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π/2

-π/2

π

π/3

In set builder notation the set {0, 1, 2, ............, 100} can be written as

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1

7

4

None of these

The conjugate of √5 i is

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√5

-√5 i

i

5i

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3

1

2

4

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-sinθ

cosθ

sinθ

-cosθ

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image

pre-image

constant

none of these

The measure of the acute angle between the lines represented by x2 -xy -6y2 =0 is

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120°

30°

130°

45°

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A function from X to X is denoted as

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f : X to Y

f : Y to Y

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A Geometric Series is divergent only if

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|r|>1

|r|≥1

|r|=1

None of these

The set of rational number is represented by

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W

R

Q'

Q

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If nis positive integers, then 2ⁿ>2n+1, only when

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n≤ 3

n≥ 3

n≤ 2

n≤ 1

If distance of (a,b) from x-axis is 2 then

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a = 2

b = 2

a = b

b = 4

An infinite arithmetic series is always

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Convergent

Oscillatory

Divergent

None of these

The set Q

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Forms a group under addition

Does not form a group

Contains no additive indentity

Contains no additive inverse

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