CРОСНООООО!!! ПЖ
sinx+cosx=-1
ПРИМЕР
ДАНО sinx-cosx=√3/2
√2cos(x+π/4)=√3/2
cos(x+π/4)=-√3/ 2
x+π/4=±arccos(-√3/ 2)+2kπ
x+π/4=±(π-π/6)+kπ
x+π/4=±5π/6+2kπ
x=±5π/6-π/4+2kπ
??????????????????????//