Sinuslar yig'indisi va ayirmasi. Kosinuslar yig'indisi va ayirmasi — 9-sinf Algebra test savollari

Bu mavzuda 15 ta test savoli bor. Quyida 10 ta namuna — to'liq test va javoblar kaliti ro'yxatdan o'tgandan keyin ochiladi.

1.sin75° + sin15° ifodani sodda ko'rinishga keltirib hisoblang.
- A)√ $\frac{6}{2}$
- B)√ $\frac{6}{4}$
- C)√ $\frac{2}{2}$
- D)√ $\frac{3}{2}$
2.cos75° + cos15° ifodani hisoblang.
- A)√ $\frac{6}{2}$
- B)√ $\frac{6}{4}$
- C)√2
- D)√3
3.sin75° - sin15° ifodani hisoblang.
- A)√ $\frac{2}{2}$
- B)√ $\frac{2}{4}$
- C) $\frac{1}{2}$
- D)√ $\frac{6}{2}$
4.cos15° - cos75° ifodani hisoblang.
- A)√ $\frac{2}{2}$
- B)√ $\frac{2}{4}$
- C)1
- D)√ $\frac{3}{2}$
5.sinα + sinβ yig'indini ko'paytmaga keltiruvchi to'g'ri formulani ko'rsating.
- A)2 sin $(\frac{α + β}{2})$ cos $(\frac{α - β}{2})$
- B)2 cos $(\frac{α + β}{2})$ sin $(\frac{α - β}{2})$
- C)2 sin $(\frac{α + β}{2})$ sin $(\frac{α - β}{2})$
- D)2 cos $(\frac{α + β}{2})$ cos $(\frac{α - β}{2})$
6.cosα + cosβ formulasini ko'rsating.
- A)2 cos $(\frac{α + β}{2})$ cos $(\frac{α - β}{2})$
- B)2 sin $(\frac{α + β}{2})$ sin $(\frac{α - β}{2})$
- C)2 sin $(\frac{α + β}{2})$ cos $(\frac{α - β}{2})$
- D)-2 sin $(\frac{α + β}{2})$ sin $(\frac{α - β}{2})$
7.cosα - cosβ formulasini ko'rsating.
- A)-2 sin $(\frac{α + β}{2})$ sin $(\frac{α - β}{2})$
- B)2 cos $(\frac{α + β}{2})$ cos $(\frac{α - β}{2})$
- C)2 sin $(\frac{α + β}{2})$ cos $(\frac{α - β}{2})$
- D)2 cos $(\frac{α + β}{2})$ sin $(\frac{α - β}{2})$
8.sinα - sinβ formulasini ko'rsating.
- A)2 cos $(\frac{α + β}{2})$ sin $(\frac{α - β}{2})$
- B)2 sin $(\frac{α + β}{2})$ cos $(\frac{α - β}{2})$
- C)2 cos $(\frac{α + β}{2})$ cos $(\frac{α - β}{2})$
- D)-2 sin $(\frac{α + β}{2})$ sin $(\frac{α - β}{2})$
9.sin90° + sin30° yig'indini hisoblang.
- A)1,5
- B)1
- C)2
- D)0,5
10.cos90° - cos30° ayirmasini hisoblang.
- A)-√ $\frac{3}{2}$
- B)√ $\frac{3}{2}$
- C)0
- D)1

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Sinuslar yig'indisi va ayirmasi. Kosinuslar yig'indisi va ayirmasi — 9-sinf Algebra test savollari

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