Y mul div c c mul pow x1 c mul sqrt x1 mul pow add x1 cos x2 div c c mul pow add c add cos x2 cos mul x1 sqrt add x1 cos x2 c mul add mul c mul sqrt add x1 cos x2 add c add cos x2 cos mul x1 sqrt add x1 cos x2 mul x1 mul add mul c cos x2 mul c x1 sin mul x1 sqrt add x1 cos x2 mul sin mul pow x1 c mul sqrt x1 mul pow add c add cos x2 cos mul x1 sqrt add x1 cos x2 c tan c tan c