Question # 1

i²=

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1

2

-1

0

A conditional is regarded as false only when the antecedent is true and consequent is

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True

False

Known

Unknown

If the roots of ax²+ bx + c = 0 (a > 0) be greater than unity, then

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a + b + c = 0

a + b + c > 0

a + b + c < 0

None of these

The value of cos(cos-1 1/2) is

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1/2

√3/2

-1/2

1/√2

The distance of the point (2, -3) from x-axis is

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-2

-3

2

3

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Associative law of multiplication

Commutative law of addition

Commutative law of multiplication

Associative law of addition

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The complement of set A relative to universal set U is the set

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The distance between the points (2, 2) and (3, 3) is

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10

5

2

If A ⊆ B then A ∪ B is

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A

B

A'

A ∩B

If x < y, 2x = A, and 2y = B, then

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A = B

A < B

A < x

B < y

The angle between the vectors u = [-3 , 5] and v = [6 , -2] is:

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π/2

-3π/2

π

None of these

The equation x²+ y²= 0 represents

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A circle

A degenerate circle

An empty set

A st. line

Area of inscribed circle is

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π R2

π η2

π r22

π r2

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In the function f: A⟶B, the elements of a are called

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Images

Pre-images

ranges

Parameters

The angle of elevation of the tops of two towers at the middle point of the line joining the foots of the tower are 60^οand 30^οrespectively. The the ratio of the heghts of the tower is

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2 : 1

3 : 1

1 : 2

1 : 3

The domain and range of a trigonometric function can be allocate by their

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graph

Continuity

Discontinuity

Periods

The Domain of y = sin x is ______

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Set of real numbers

Rational

Irrational no.

None of above

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2

-3/2

1

0

The range of y=x2 + 1 is the set of non-negative real numbers except

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0≤ y < 1

0 < y < 1

0≤ y≤ 1

0 < y≤1

The distance between the points (0,0) and (x,y) is

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x²+ y²

x

y

When a selection of object is made without paying regard to the order of selection, it is called

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Sequence

Series

Combination

Permutation

If P, Q, R be the A.M., G.M., H.M. respectively between any two rational numbers a and b, then P - Q is

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Intersection of two parabolas

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parabola

Two points

Four points

Hyperobla

If all members of a sequence are real numbers then it is called a

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Series

Function

Real sequence

Range

tan(3π/2 +θ)=______;

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tanθ

cotθ

-tanθ

-cotθ

6 is

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A prime integer

An irrational number

A rational number

An odd integer

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