Question 1086196
{{{(tan(A)+sec(A)-1)cos(A)=(sin(A)/cos(A))cos(A)+(1/cos(A))cos(A)-cos(A)}}}
{{{(tan(A)+sec(A)-1)cos(A)=sin(A)+1-cos(A)}}}
{{{(tan(A)+sec(A)-1)cos(A)=highlight(sin(A)-cos(A)+1)}}}