3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60,63,66,69,72,75,78,81,84,87,90,93,96,99
ОДЗ:
Конечный ОДЗ: x∈[1;7]
противоречит ОДЗ, потому отсекаем.
Ответ:
=(y^3+5y)(y-3)=y^4+y^3(-3)+5y^3-15y^2=y^4-3y^3+5y^3-15y^2=y^4+2y^3-15y^2
cos(p/6)*sin(3*x)-sin(p/6)*cos(3*x)-(2*cos(p/6)*cos(p/3)*cos(x)-2*sin(p/6)*cos(p/3)*sin(x))*sin(2*x)-(2*sin(p/6)*sin(p/3)*sin(x)-2*cos(p/6)*sin(p/3)*cos(x))*cos(2*x)