Question # 1

The direction of an angle Θ is determined by its:

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value

magnitude

ratio

sign

If s denotes the length of the arc intercepted on a circle of radius r by a central angle of α radians, then:

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s = rα

s = r + α

none of these

cos⁴Θ - sin⁴Θ =

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sin 2Θ

cos 2Θ

tan 2Θ

sec 2Θ

The quadrant of an angle Θ is determined by its:

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sign

value

ratio

magnitude

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In circular system the angle is measured in:

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radians

degrees

degrees, minutes

degrees, seconds

1° is equal to:

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

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2

4

0

8

(1 - cos²Θ) (1 + cot²Θ) =

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tan²Θ

0

1

-1

Which one is not a quadrant angle ?

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0°

90°

280°

270°

Which one is a quadrant angle ?

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60°

180°

120°

30°

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If cosec Θ > 0 and cot Θ < 0, then terminal arm of the angle lies in:

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I

II

III

IV

If the initial side of an angle is the positive x-axis and the vertex is at the origin, the angle is said to be in the _____________:

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initial position

finalposition

normalposition

standardposition

To convert any angle in radians into degrees, we multiply the measure by:

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30°

45°

60°

75°

180° = _____________:

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π radians

1 radian is equal to:

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180°

none of these

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

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90°

100°

120°

10°

If sin α < 0 and cos α > 0, then α lies in:

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I

II

III

IV

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