Question # 1

Cot 45^o =..................

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1

√2

1/√2

0

An ______________ is defined as the union of two non-col-linear rays with some common end point:

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angle

vertex

initial side

terminal

The complement of∅ is...........

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∪

∅

Impossible

Union

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-1

1

0

An angle which is equal to 90° is called:

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right angle

obtuse angle

acute angle

none of these

The Range of R is, if R = {(1,3),(2,2),(3,1),(4,4)}.

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{1,2,4}

{3,2,4}

{1,2,3,4}

{1,3,4}

A straight line which cuts the circumference of a circle in two distinct points is called:

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chord

secant

tangent

sector

The lengths of two transverse tangents to a pair of circles are:

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Unequal

Equal

Overlapping

Point (-1,4) lies in quadrant:

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I

II

III

IV

tan 60^o = ...............

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1/2

√3/2

√3

1/√3

A central angle is subtended by two radii with the vertex at the ______ of the circle:

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Arc

Radius

Centre

Chord

The date presented in the form of frequency distribution is called:

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distribution

grouped data

range data

regrouped data

(A∩B)'= _____________

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A'∪B'

A'∩B'

A∩B

A∪B

Mean of a variable with similar observations say constant k is............

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Negative

K- itself

zero

one

In ax²+b+c, the co-efficient of x is:

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b

d

c

a

If A and B are two disjoint sets then A⋃ b = ______

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A

B

∅

B⋃ A

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