Y add mul c mul x1 mul pow x3 c mul add c x3 mul cos add mul c x1 cos pow x3 c mul sin mul pow x3 c mul pow cos add mul c x1 cos pow x3 c c add c x3 sin add mul c x1 cos pow x3 c cos mul pow x3 c mul pow cos add mul c x1 cos pow x3 c c add c x3