Y mul div c c mul pow x5 c mul pow x2 c mul pow add c add x5 add x3 add pow x5 c add mul c mul x5 mul x3 pow x2 c tan mul x5 x3 div c c add mul c x2 add mul c mul x3 pow x5 c mul x2 mul pow x5 c add c mul x3 pow cos mul x5 x3 c