Решите примерчик по 2sin^3x-1=cos^4x-sin^4x ^ - квадрат

2*sin(x)^3-1 = cos(x)^4-sin(x)^4;

x ∈ ∅;  

x = (7119006*%pi*k-3039715*%i-8745221)/3559503;

x = (53321682*%pi*k-22767605*%i-18255399)/26660841;

x = (3247738702709467340*%pi*k631*%i+1389167473631196886)/1623869351354733670;

x=100232113306757758976*%pi*k1391*%i+114571574520305418240)/50116056653378879488;

x = (7119006*%pi*k+3039715*%i-8745221)/3559503;

x = (53321682*%pi*k+22767605*%i-18255399)/26660841;

k ∈ Z