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11th Class FA Mathematics Chapter 10 Online Test MCQs With Answers
Question # 1
2 cos α cos ß =
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sin (α + ß) - sin (α - ß)
cos (α + ß) - cos (α - ß)
cos (α + ß) + cos (α - ß)
sin (α + ß) + sin (α - ß)
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Question # 2
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none of these
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Question # 3
2 sin 12° sin 46° =
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cos 34° + cos 58°
sin 34° - sin 58°
sin 34° + sin 58°
cos 34° - cos 58°
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Question # 4
2 sin α cos ß =
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sin (α + ß) - sin (α - ß)
cos (α + ß) + cos (α - ß)
sin (α + ß) + sin (α - ß)
cos (α + ß) - cos (α - ß)
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Question # 5
The distance between the points P(x1, y1) and Q(x2, y2) is:
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Question # 6
sin (α - ß) =
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Question # 7
-2 sin α sin ß =
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sin (α + ß) + sin (α - ß)
cos (α + ß) + cos (α - ß)
cos (α + ß) - cos (α - ß)
cos (α - ß) + cos (α - ß)
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Question # 8
If an angle α is allied to an angle ß, then α ± ß = __________:
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90°
multiple of 90°
180°
multiple of 180°
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Question # 9
A reference angle Θ is always:
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Question # 10
sin (α + ß) =
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Question # 11
tan (α - ß ) =
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Question # 12
sec (2π + Θ), where Θ is a basic angle will have terminal side in:
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quad. I
quad. II
quad. III
quad. IV
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Question # 13
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Question # 14
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Question # 15
Cot1°, Cot2°, Cot3°, .......... Cot89° =
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-1
1
∞
none
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Question # 16
sin (Θ - π) =
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