Y mul div c c mul x1 mul pow x1 div c c mul pow x3 c mul add c pow tan mul x1 mul pow x1 c mul pow x3 c add x1 add x3 add sqrt x1 mul c pow x3 c c add mul c mul pow x1 c add c mul c sqrt x1 mul c mul pow x1 div c c add x1 add x3 add sqrt x1 mul c pow x3 c