| 1 |
2 sin α cos ß = |
- A. sin (α + ß) - sin (α - ß)
- B. cos (α + ß) + cos (α - ß)
- C. sin (α + ß) + sin (α - ß)
- D. cos (α + ß) - cos (α - ß)
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| 2 |
If an angle α is allied to an angle ß, then α ± ß = __________: |
- A. 90°
- B. multiple of 90°
- C. 180°
- D. multiple of 180°
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| 3 |
Tan (294°) = |
- A. tan24°
- B. -tan24°
- C. cot24°
- D. -cot24°
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| 4 |
If sin α = cos ß in any triangle ABC then: |
- A. α + ß = 90°
- B. α + ß = 180°
- C. α + ß = 360°
- D. α + ß
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| 5 |
tan (α+ß) = |
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| 6 |
csc (2π - Θ), where Θ is a basic angle, will have terminal side in: |
- A. quad. I
- B. quad. II
- C. quad. III
- D. quad. IV
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| 7 |
sin5Θ + sin3Θ is equal to: |
- A. 2cos 2Θ sin Θ
- B. -2 cos 4Θ sin Θ
- C. -2 sin 4Θ cos Θ
- D. 2 sin 4Θ cos Θ
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| 8 |
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| 9 |
sin (Θ - π) = |
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| 10 |
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