| 1 |
cos (α-ß) = |
- A. cos α cos ß + sin α sin ß
- B. cos α cos ß - sin α sin ß
- C. cos α cos ß + sin α cos ß
- D. sin α cos ß - sin α sin ß
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| 2 |
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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| 3 |
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| 4 |
The angles 90°±Θ, 180°±Θ, 270°±Θ, 360°±Θ, are the: |
- A. composite angles
- B. half angles
- C. quadrantal angles
- D. allied angles
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| 5 |
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- A. quad. I
- B. quad. II
- C. quad. III
- D. quad. IV
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| 6 |
tan (α+ß) = |
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| 7 |
A reference angle Θ is always: |
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| 8 |
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| 9 |
sin (α - ß) = |
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| 10 |
tan (-135°) = |
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