9-кл.алгебра 4-чейрек
Authored by Aijan Aijan
Mathematics
9th Grade
Used 1+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
90° бурч радианда канчага барабар?
π
π/3
π/2
2π
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Бурчтун 180° градус менен радиандык чени канчага барабар?
π/2
π
2π
π/4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
. cos(α + β) формуласын көрсөтүңүз:
cosα + cosβ
cosαcosβ + sinαsinβ
sinαcosβ + cosαsinβ
cosαcosβ - sinαsinβ
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sin(α - β) формуласы кайсыны туура берет?
sinαsinβ + cosαcosβ
sinαcosβ + cosαsinβ
sinαcosβ – cosαsinβ
cosαcosβ - sinαsinβ
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Келтирүү формуласы боюнча sin(180° + α) канчага барабар?
sinα
–sinα
cosα
-cosα
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Келтирүү формуласы боюнча cos(90° - α) канчага барабар?
sinα
–sinα
cosα
–cosα
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Каалаган бурчтун синусу үчүн төмөнкү кайсы формула туура?
sin(–α) = –sinα
sin(–α) = sinα
sin(α) = –cosα
sin(α) = cos(–α)
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