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Trigonometry & ...

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  • Question 1
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  • Question 2
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    4cos260° – sin430° is equal to

  • Question 3
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    The value of sin45° × cos45° is

  • Question 4
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    The angles of elevation of an aeroplane flying vertically above the ground as observed from the two consecutive stones 2 km apart are 45° and 60°. The height of the aeroplane above the ground is

  • Question 5
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    The height of a tower is 200 m. When the angle of elevation of the sun changes from 45° to 60°, the shadow of the tower becomes shorter by x m. Find the value of x.

  • Question 6
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    The value of the expression

  • Question 7
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    If 5 sin 8 θ = 5/8, then find the value of cosθ.

  • Question 8
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    tan 860° = ?

  • Question 9
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    485° lies in quadrant

  • Question 10
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    From a tower 100 m high, the angle of depression of a car is 30°. Find how far the car is from the tower

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