Question 984752
Can you re-post your equation with parentheses that separates the numerator and denominator on the left and right hand sides?
Can't tell if you mean,
{{{1-cos a+(sin(a)/cos(a))+sin(a)-1=1+sin(a)/cos(a)}}}
or
{{{1-(cos(a)+sin(a))/(cos(a)+sin(a)-1)=1+sin(a)/cos(a)}}}
or
{{{(1-cos(a)+sin(a))/cos(a)+sin(a)-1=(1+sin(a))/cos(a)}}}
or many other possibilities.