Объяснение:
Cos^2(x-y/2) = 1/2
cos(x-y/2) = ±√2/2
x-y/2 = π/4 + πk/2, k є Z
x= y/2 + π/4 + πk/2, k є Z
Объяснение:
Cos^2(x-y/2) = 1/2
cos(x-y/2) = ±√2/2
x-y/2 = π/4 + πk/2, k є Z
x= y/2 + π/4 + πk/2, k є Z