December 2021 0 28 Report

Преобразуйте произвдение в сумму.Срочно!

1) sin40°cos20°

2) 2cos80°sin20°

3) 2sin10°cos100°
4) cos12°sin6°

5) 2cos70°cos40°

6) sin55°sin17°

7) cos4xcos6x

8)sin3xsin17x

9)4cos Пи/5 sin3Пи/10

10)sin(x-y)cos(x+y)

 

 

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