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int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?
int (tan^-1 x)/(1+x^2) dx =f(x)+c হলে f(x)=?