5sin11x 4cos3x 3sin3x=0
sin11x=0 ; cos3x=0 ; sin3x=0
sin11x=0
11x=π*n
x1=πn/11
cos3x=0
3x=π/2+2πn
x2=π/6+2πn/3
sin3x=0
3x=πn
x3=πn/3
Ответ: πn/11 ; π/6+2πn/3 ; πn/3
5sin11x * 4cos3x * 3sin3x=0
11x = pik
x = pik/11, k∈Z
cos3x = 0
3x = pi/2+pik
x= pi/6+pik/3, k∈Z
sin3x= 0
3x =pik
x= pik/3, k∈Z