1.5^2-1.5*11.5= 2.25-17.25=-15
![\sqrt{x+2}+4=x](https://tex.z-dn.net/?f=+%5Csqrt%7Bx%2B2%7D%2B4%3Dx+)
Область определения: x >= -2
![\sqrt{x+2}=x-4](https://tex.z-dn.net/?f=+%5Csqrt%7Bx%2B2%7D%3Dx-4+)
Возводим в квадрат
x + 2 = (x - 4)^2 = x^2 - 8x + 16
x^2 - 9x + 14 = 0
(x - 7)(x - 2) = 0
x1 = 2 > -2
x2 = 7 > -2
Sin4x=1/2
4x=П/6+2Пk x=п/24+Пk/2
4x=5п/6+2Пk x=5П/24+Пk/2
0<=П/24+Пk/2<=П 0<=5П/24+Пk/2<=П
0<=(1+12k)/24<=1 0<=(5+12k)/24<=1
0<=1+12k<=24 0<=5+12k<=24
-1<=12k<=23 -5<=12k<=19
k=0 k=1 k=0 k=1
x1=П/24 x2=13П/24 x3=5П/24 x4=17П/24
ответ {П/24;5П/24;13П/24;17П/24}