Question 684855
{{{(2cos(x)-sin(2x))/(sin^2(x)-sinx+cos^2(x))}}}


{{{(2cos(x)-2sin(x)cos(x))/(1-sinx)}}}  
because(sin^2x+cos^2x=1)

{{{(2cos(x))(1-sin(x))/(1-sinx)}}}  


2 cos (x)