sin2xcos2x= -1/4 pomogite

sin2xcos2x=-1/42•sin2xcos2x=-1/4*2sin4x=-1/24x=(-1)^narcsin(-1/2)+πn4x=(-1)^(n+1)arcsin1/2+πn4x=(-1)^(n+1)•π/6+πnx=(-1)^(n+1)π/24+πn/4;n€Z