
Формулы тригонометрии
Authored by Алена Баланюк
Mathematics
9th Grade
Used 22+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sin 2 x + cos 2x
-1
1
0
2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
cos (x+y)
cosx⋅cosy - sin x⋅ sin y
cos x ⋅ cos y + sin x ⋅ sin y
cos x⋅sin y - sin x⋅ cos y
cos x⋅sin y + sin x⋅ cos y
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
cos (x-y)
cos x⋅sin y - sin x⋅ cos y
cos x⋅sin y + sin x⋅ cos y
cos x⋅cos y + sin x⋅ sin y
cos x⋅cos y - sin x⋅ sin y
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sin 2 α
sin 2α - cos 2α
2 sin 2α - 1
2 cos 2 α - 1
2 sin α cos α
5.
MULTIPLE SELECT QUESTION
30 sec • 3 pts
cos 2 α
1 - 2 sin 2α
2 cos 2α - 1
cos 2α - sin 2α
sin 2α - cos2α
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1 - sin 2α
cos 2α
cos 2α
2cos α
2cos2α
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
tg α
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