Question # 1

The set having only one element is called.

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Null set

Power set

Singleton set

Subset

If the two circles touches externally, then the distance between their centres is equal to the:

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Difference of their radii

Sum of their radii

Product of their radii

Geometric mean of 2,4,8 is......................

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2

4

8

3

The value obtained by reciprocating the mean of the reciprocal of x₁,x₂,x₃..............x₁₁ observation is called....................

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Geometric mean

Median

Harmonic mean

S.D

If a : b = c :d, than a + b : b = c + d : d is called theorem of :

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Alternando

Invertendo

Dividendo

Componendo

The observations that divide a data set into four equal parts are called:

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Deciles

Quartlies

Percentiles

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If variance is equal to 36 then the standard deviation will be:

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36

6

-6

none of these

π/2 radians =.....................

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30^o

45^o

60^o

90^o

If a = 2, b = -7, c = 1, then the value of b²-4ac is:

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37

39

41

42

Three times the sequence on any side of an equilateral triangle equal to four times the square on the:

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Median

Altitude

Side

Vertex

Cot 60^o=________________

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1/√3

√3

1/2

2

Sum roots of 4x²-3x+6=0:

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The discriminant of 2x²-7x+1= 0 is:

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41

45

43

47

Formula l=rθ is true only when θ is in:

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degree

radian

revolution

minute

If R= { (a,2),(b,3),(c,3) }, then Dom R = ________________

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{1,2}

{1,2,3}

{a,b,c}

{a,c}

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