Question

( 1-frac{sin ^{2} x}{1+cos x}-frac{sin x}{1-cos x}+frac{1+cos x}{sin x} )
( 1-left[frac{sin x(sin x-sin x cos x+1+x)}{1-cos ^{2} x}right]+frac{1+cos x}{sin x} )
( 1-frac{sin x-sin x cos x+1+cos x}{sin x}+frac{1+cos x}{sin x} )
( sin x-sin x+sin x cos x-1

# sinx 16.1 – sinºx 1+cosx , 1+cosx simx 1-cosx

Solution