Математика(тригонометрія)
Authored by Anna Ivantsiv
Mathematics
11th Grade
Used 4+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sin2a+cos2a=
немає розв`язку
1
0
-1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
tg a =
sin a/cos a
cos a/sin a
sin a/ctg a
ctg a/ cos a
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
tg a * ctg a=
0
немає розв`язку
1
-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2sin a* cos a =
ctg2a
tg2a
sin2a
cos2a
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sina*cosb +cosa*sinb=
cos(a+b)
sin(a+b)
sin(a-b)
cos(a-b)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
cosa*cosb-sina*sinb=
cos(a+b)
cos(a-b)
sin(a-b)
sin(a+b)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
tg(a+b)=
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