Sinx+sin0.5x=0 Помогите, пожалуйста!
Sinx+sin0.5x=0 2sin0.5xcos0.5x+sin0.5x=sin0.5x(2cos0.5x+1)=0 sin0.5x=0; 0.5x=πk ;x=2π k ; k∈Z. 2cos0.5x+1=0 ; cos0.5x=-1/2; 0.5x=2/3π+2πk;x=+-4/3π+4πk;k∈Z