Question # 1

In triangle the length of the sides are 7, 4√3 and √13. Then the smallest angle is:

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15°

30°

60°

45°

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equal sets

null sets

overlapping sets

subsets

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cancellation property w.r.t multiplication

cancellationproperty w.r.t addition

multiplicativeproperty

additiveproperty

The range of principal sine function is:

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2 sin 12° sin 46° =

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cos 34° + cos 58°

sin 34° - sin 58°

sin 34° + sin 58°

cos 34° - cos 58°

If A and B are two matrices, then:

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A B = O

AB = BA

AB = I

AB may not be defined

If 2s = a + b +c, then in any triangle ABC:

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none of these

The domain of principal sine function is:

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Sum of all four fourth roots of unity is:

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1

0

-1

3

if sin x + cos x = 0, then x = _________:

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none of these

The general solution of sin x = cos x is ___________:

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nπ

2nπ

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3

1

4

None

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

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Solution set of the equation x² - 3x + 2 = 0 is

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{-1, 2}

{1, -2}

{-1, -2}

{1, 2}

No. of signals made by 5 flags of different colors using 3 flags at a time is:

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60

15

10

None

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z is purely real

z is any complex number

z is purely imaginary

real part of z = imaginary part of z

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2x

x²

1

none of these

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diagonal matrix

A compound statement of the form "if p then q" is called an:

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tautology

conditional

consequent

absurdity

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

If sin Θ + cosec Θ = 2, then sin² Θ + cosec² Θ =

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2

4

0

8

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