
Синус и косинус суммы и разности аргументов
Authored by Валентина Козлова
Mathematics
2nd - 5th Grade
Used 4+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Дополните формулу:
sin (х+у)=
sinx cosy- cosx siny
sinx cosy+cosx siny
cosx cosy-sinx siny
cosx cosy-sinx siny
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Дополните формулу:
cos (x-y)
sinx cosy+cosx siny
sinx cosy-cosx siny
cosx cosy+sinx siny
cosx cosy-sinx siny
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Упростить:
cos 1070 cos 170 +sin 1070 sin 170
cos 900
cos 1240
sin 1240
sin 900
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Упростить:
sin 6x cos 5x+sin 6x cos 5x
sin x
sin 11x
cos 11x
cos x
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Вычислите: sin 770 cos 170 -sin 170 cos 770
sin 940
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