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Синус и косинус суммы и разности аргументов

Authored by Валентина Козлова

Mathematics

2nd - 5th Grade

Used 4+ times

Синус и косинус суммы и разности аргументов
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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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