решите уравнение f'(x)=0, если f (x) =sin6x+con6x+5

(sin6x+con6x+5)'=6cos6x-6sin6x-06(sin(π/2-6x)-sin6x)=02sin(π/4-6x)cosπ/4=0sin(π/4-6x)=0π/4-6x=πn-6x=-π/4+πnx=π/24+πn/6