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