Question # 1

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30°

45°

60°

75°

1° is equal to:

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

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I

II

III

IV

The direction of an angle Θ is determined by its:

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value

magnitude

ratio

sign

The quadrant of an angle Θ is determined by its:

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sign

value

ratio

magnitude

In circular system the angle is measured in:

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radians

degrees

degrees, minutes

degrees, seconds

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

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I

II

III

IV

Which one is not a quadrant angle ?

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0°

90°

280°

270°

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

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

cos⁴Θ - sin⁴Θ =

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sin 2Θ

cos 2Θ

tan 2Θ

sec 2Θ

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