Помогите срочно тригонометрия, задание 2.1
Sin²(x+ π/3)=1+cos²(x+ π/3) 0=1-sin²(x + π/3) + cos²(x + π/3) 0=cos²(x+π/3) + cos²(x+π/3) 2cos²(x+π/3)=0 cos²(x+π/3)=0 cos(x+π/3)=0 x+π/3= π/2 + πk, k∈Z x=π/2 - π/3 + πk x= π/6 + πk, k∈Z Ответ: π/6 + πk, k∈Z.