Question # 1

The next term of the sequence-1, 2, 12, 40, .........is:

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112

212

144

none

A dice is thrown. The probability to get an odd number is;

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1

none of these

If each element in any row or each element in any column of a square matrix is zero, then value of the determinant is:

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0

1

-1

none of these

No. of signals made by 4 flags of different colors using 2 flags at a time:

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6

12

60

none

Inverse sine function is written as:

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(sin x)^-1

sin x^-1

arc sinx

arc sin^-1 x

If an angle α is allied to an angle ß, then α ± ß = __________:

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90°

multiple of 90°

180°

multiple of 180°

The range of principal cosine function is:

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T₆

T₇

T₈

T₅

In any triangle ABC, law of cosines is:

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How many complex cube roots of unity are there:

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2

0

1

3

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{1, 2, 3}

{5, 6, 7}

{4}

The angle between 0° and 360° and co-terminal with - 620° is:

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100°

200°

300°

320°

No. of necklaces can be made from 7 beads of different colors ?

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360

120

60

70

The conjunction of two statements p and q is denoted by:

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r₂ =

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If the sum of the roots of the equation kx² - 2x + 2k = 0 is equal to their product, then the value of k is:

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1

2

3

4

sin (α + ß) =

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A groupoid (S) is called __________ if it is associative in S:

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group

abelian-group

semi-group

associative-group

Division of a natural number by another natural number gives:

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always a natural number

always an integer

always a rationalnumber

always an irrational number

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singular

non-singular

rectangular

null

If a statement P(n) is true for n = 1 and truth of P(n) for n = k implies the truth of P(n) for n = k + 1, then P(n) is true for all:

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integers n

real numbers n

positive real numbers n

positive integers n

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