Интеграл tan(y)/log(cos(y)) (dx)

Вы ввели

  1               
  /               
 |                
 |     tan(y)     
 |  ----------- dy
 |  log(cos(y))   
 |                
/                 
0                 

$$\int_{0}^{1} \frac{\tan{\left (y \right )}}{\log{\left (\cos{\left (y \right )} \right )}}\, dy$$