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

Question # 1

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

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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

- 72° = ___________________:

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none of these

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Question # 4

(1 - sin²Θ) (1 + tan²Θ) =

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-1

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Question # 5

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

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Question # 6

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

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III

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Question # 7

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

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Question # 8

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

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Question # 9

In a circle of radius r, an arc of length kr will subtend in angle of __________ radians at the center:

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Question # 10

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 # 11

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