Question # 1

(1 - sin²Θ) (1 + tan²Θ) =

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0

1

Θ

-1

In circular system the angle is measured in:

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radians

degrees

degrees, minutes

degrees, seconds

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

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100°

200°

300°

320°

If sinΘ <0, cosΘ<0 then the terminal arm of the angle lies in quadrant:

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I

II

III

IV

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

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I

II

III

IV

If tan Θ > 0 and sin Θ < 0 then terminal arm of the angle lies in quadrant:

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I

II

III

IV

The number of radius in the angle subtended by an arc of a circle at the center =

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radius × arc

radius - arc

1° is equal to:

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The quadrant of an angle Θ is determined by its:

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sign

value

ratio

magnitude

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

The area of a sector of a circular region of radius r with length of the arc of the sector equal to s is-----------:

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rΘ

rs

Which one is not a quadrant angle ?

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0°

90°

280°

270°

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

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

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90°

100°

120°

10°

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

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(1 - cos²Θ) (1 + cot²Θ) =

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tan²Θ

0

1

-1

cos⁴Θ - sin⁴Θ =

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sin 2Θ

cos 2Θ

tan 2Θ

sec 2Θ

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

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2

4

0

8

180° = _____________:

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π radians

1 radian is equal to:

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180°

none of these

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