Автор - uljan1999

tga*tgb+(tga+tgb)ctg(a+b)

Ответ

Автор - ghost16061998
) ctgx(x/2)-1=02) sin(x/2-p/6)-1=0
) cos(p/2+x)-sin(p-x)=1

Ответы и объяснения

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