1/2(cos6x-cos12x)=1/2cos6x 1/2cos6x-1/2cos12x=1/2cos6x -1/2cos12x=0 cos12x=0 12x=П/2+Пn x=П/24+Пn/12
(-1024)sin ^12x+3072sin^10 x-3456sin^8 x+1776sin^6 x-396sin^4 x+27sin^2x
ответ -(cos(12x)-cos(6x))/2
1/2(cos6x-cos12x)=1/2cos6x
1/2cos6x-1/2cos12x=1/2cos6x
-1/2cos12x=0
cos12x=0
12x=П/2+Пn
x=П/24+Пn/12
(-1024)sin ^12x+3072sin^10 x-3456sin^8 x+1776sin^6 x-396sin^4 x+27sin^2x
ответ -(cos(12x)-cos(6x))/2