Question # 1

The system of measurement in which the angle is measured in degrees, and its sub-units, minutes and seconds is called the:

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circular system

sexagesimal system

decimal system

degree system

If the sum of the roots of ax² - (a + 1) x + (2a + 1) = 0 is 2, then the product of the roots is:

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1

2

3

4

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°

The range of y = cos^-1 x function is:

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The angles 90°±Θ, 180°±Θ, 270°±Θ, 360°±Θ, are the:

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composite angles

half angles

quadrantal angles

allied angles

If, for all x in the domain of f, there exists a smallest positive number p such that f (x+p) = f(x), then p is the:

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period of f

period of 2f

period of 3 f

period of 4 f

Period of a trigonometric function is:

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any real number

any negative real number

any integer

a least positive number

The multiplicative identity of real numbers is:

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0

1

2

-1

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3×2

2×3

2×2

3×3

In a triangle if α > 45°, ß > 30° then Γ cannot be:

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90°

100°

120°

10°

The period of sec 2x is:

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If W = {0, 1, 2, 3, 4, ........}, N = {1, 2, 3, 4 ...........} then N - W = ?

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W

{0}

none of these

No. of arrangements of the letters of the word plane taking all letters at a time:

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5

1

none

No. of selection of n different things out of n is:

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1

n

n!

none

The additive inverse of a real number is a:

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0

-a

a

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In any triangle ABC, law of cosines is:

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cos⁴Θ - sin⁴Θ =

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sin 2Θ

cos 2Θ

tan 2Θ

sec 2Θ

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To draw general conclusions from well-known facts is called:

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logic

proposition

induction

deduction

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