Y mul div c c mul x3 mul pow x2 div c c mul pow add x2 sqrt x2 div c c mul pow cos mul cos x2 cos sqrt add x2 sqrt x2 c mul add mul add c mul c sqrt x2 mul cos x2 sin sqrt add x2 sqrt x2 mul c mul sqrt x2 mul sqrt add x2 sqrt x2 mul cos sqrt add x2 sqrt x2 sin x2 cos tan mul cos x2 cos sqrt add x2 sqrt x2