lst=[["(d*cos(f*x+e))^(1/2)*(g*sin(f*x+e))^(1/2)/(a+b*cos(f*x+e))","x",1],
["(d*cos(f*x+e))^(1/2)/(a+b*cos(f*x+e))/(g*sin(f*x+e))^(1/2)","x",1],
["(g*sin(f*x+e))^(1/2)/(d*cos(f*x+e))^(1/2)/(a+b*cos(f*x+e))","x",1],
["1/(d*cos(f*x+e))^(1/2)/(a+b*cos(f*x+e))/(g*sin(f*x+e))^(1/2)","x",1]]