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11th Class FA Mathematics Chapter 9 Online Test MCQs With Answers

Question # 1

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

Choose an answer

III

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Question # 2

The quadrant of an angle Θ is determined by its:

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sign

value

ratio

magnitude

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Question # 3

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

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Question # 4

(1 - cos²Θ) (1 + cot²Θ) =

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tan²Θ

-1

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Question # 5

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

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Question # 6

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Question # 7

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

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Question # 8

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

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90°

100°

120°

10°

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Question # 9

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

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Question # 10

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

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100°

200°

300°

320°

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Question # 11

Which one is not a quadrant angle ?

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0°

90°

280°

270°

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