Question # 1

Which of the following is De-Morgan's law?

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(A∪ B)∪ C = A∪ ( B∪ C)

(A∩B)^C= A^c∪ B^c

A∪ (B∩ C) = ( A∪ B)∩ (A∪ C)

A∩(B∪ C) = (A∩B)∪(A∩C)

If set has 3 and B has 2 elements then number binary relations of A x B.

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2²

2⁸

2⁶

2³

If number of elements in se A is 3 and in set B is 2, then number or binary relations in A x B is.

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3

4

7

12

Mean of a variable with similar observations any constant k is:

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Negative

k itself

Zero

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The ratio of the circumference and the diameter of the circle is:

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r

e

d

In a circle radius 10 what is the length of are intercepted by a central angle of 60°:

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π/3m

3/10πm

10π/3m

π/30m

The length of two common tangents to two circles are _____ to each other:

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Perpendicular

Equal

Parallel

Un-equal

A grouped frequency table is also called.............

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Data

Frequency distribution

Frequency polygon

Histogram

Point (-1,4) lies in quadrant:

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I

II

III

IV

Median from the data 2.3,2.7,2.5,3.1 and 1.9 Is.........................

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2.3

2.5

2.7

2.9

Each of the complex cube root of unity is:

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The square of the other

The half of the other

The cube of the other

Equal to each other

Tangents drawn at the end points of the diameter of a circle are:

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Parallel

Perpendicular

Intersecting

From a point outside the circle __________ tangents can be drawn:

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One

Two

Three

Four

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The complement of∪ is................

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∪

∅

impossible

Union

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