ответ: x=-5p/24+pn, x=-11p/4+pn, n E Z
Объяснение:
наверно cos(2x+2p/3)=V2 /2 (V-корень)
аргумент (2x+2p/3)= arc cos V2 /2 +2pn, u 2x+2p/3= -arccos V2/2 +2pn
2x+2p/3 =p/4 +2pn, 2x=-2p/3+p/4 +2pn, 2x= -5p/12 +2pn, x=-5p/24 +pn,
2x+2p/3= -p/4+2pn, 2x=-2p/3-p/4+2pn, 2x= -11p/12+2pn, x=-11p/24 +pn,
n E Z
