sin x + cos x = sin x cos x +1
Sin x+cos x-sin x cos x -1=0 sin x-sin x cos x+cos x -1=0 sin x-sin x cos x-(1-cos x)=0 sin x(1- cos x)-(1-cos x)=0 (1-cos x)(sinx - 1)=0 1-cos x=0 sin x -1=0 cosx=1 sin x =1 x=2