Read the proverb and listen to the music. What - вопрос №989281 от armen6204 25.11.2022 16:31

Question

Другие предметы: Read the proverb and listen to the music. What images come to mind? A wind from the south has rain in its mouth

armen6204 · Answer

1)1+tga=1+sina/cosa=(cosa+sina)/cosa
1+ctga=1+cosa/sina=(sina+cosa)/sina
Разделив первую дробь на вторую получишь: sina/cosa=tga
2)1+cos(5x)*sin(4x)=cos(4x)*sin(5x)cos(4x)*sin(5x)- cos(5x)*sin(4x)=1sin(5x-4x)=1sin(x)=1x=pi/2+2*pi*n
3)