Question # 1

The complement of∅ is...........

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∪

∅

Impossible

Union

π/2 radians =.....................

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30^o

45^o

60^o

90^o

If two sets have some elements common but not all are called......... sets

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Sub

OVERLAPPING

Disjoint

Super

Find k, if the roots are equal in (k+3)x²-2(k+1)x-(k+1)=0:

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2, -1

-2,-1

-2,1

2,1

tan 30^o=...................................

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1/2

√3/2

√3

1/√3

A set containing no element is called.

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subset

Empty set

Singleton set

Super set

The distance between the centres of two congruent touching circles externally is:

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Of zero length

The radius of each circle

The diameter of each circle

Twice the diameter of each circle

Types of dispersion are.........................

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4

5

6

8

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An identity

An equation

A faction

None of these

The ratio of 1km to 600m is:

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1 : 6

5 : 3

3 : 2

2 : 1

The measure of central tendency which is not affected by extreme values is called:

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Median

Arithmetic mean

Geometric mean

None of these

The angle subtended by an arc at the centre of a circle is called its:

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Outer angle

Centralangle

Complementaryangle

Supplementaryangle

U' = ________________

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U

A

A'

φ

A straight line, drawn from the centre of a circle to bisect a chord is _______ to the chord:

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Parallel

Equidistant

Perpendicular

Congruent

Which of the following is distributive property of union over intersection?

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A∪ (B ∪ C) = A∪ (B∪ C)

A∩ (B∩C)= (A∩B)∩C

A∪ (B∩ C) = ( A∪ B)∩ (A∪ C)

A∩(B∪ C) = (A∩B)∪(A∩C)

The boundary traced by a moving point in a circle its ______:

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Circumference

Diameter

Radius

Area

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