sin(п/2+4х)=1 решите уравнение

cos4x=14x=2πnx=πn/2,n∈z--------------------------

sin(π/2+4x)=11)sinπ/2=12)sin(x+2k.π)=sinxπ/2+4x=π/2+2k.π, k∈Z4x=2k.πx=k.π/2, k∈Z (k=0,1,-1,2,-2,.........)==========