тригонометриялық функциялардың аргументтерін қосу және азайту
Authored by Нүрбек Халықов
Mathematics
9th Grade
Used 2+ times
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sin(α + β)=
sin α · cos β + cos α · sin β
sin α · cos β − cos α · sin β
cos α · cos β − sin α · sin β
cos α · cos β + sin α · sin β
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
tg(α + β) =
(tg α − tg β) / (1 + tg α · tg β)
(ctg α · ctg β + 1) / (ctg β − ctg α)
(tg α + tg β) / (1 − tg α · tg β)
(ctg α · ctg β − 1) / (ctg α + ctg β)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ctg(α − β) =
(ctg α · ctg β − 1) / (ctg α + ctg β)
(ctg α · ctg β + 1) / (ctg β − ctg α)
- (tg α − tg β) / (1 + tg α · tg β)
(tg α + tg β) / (1 − tg α · tg β)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sin(α − β) =
cos α · cos β + sin α · sin β
cos α · cos β − sin α · sin β
- sin α · cos β + cos α · sin β
sin α · cos β − cos α · sin β
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
tg(α − β) =
(tg α − tg β) / (1 + tg α · tg β)
(ctg α · ctg β − 1) / (ctg α + ctg β)
(tg α + tg β) / (1 − tg α · tg β)
(ctg α · ctg β + 1) / (ctg β − ctg α)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
cos(α − β) =
cos α · cos β − sin α · sin β
- cos α · cos β + sin α · sin β
sin α · cos β + cos α · sin β
sin α · cos β − cos α · sin β
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ctg(α + β) =
- (tg α − tg β) / (1 + tg α · tg β)
(ctg α · ctg β + 1) / (ctg β − ctg α)
(ctg α · ctg β − 1) / (ctg α + ctg β)
- (tg α + tg β) / (1 − tg α · tg β)
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