SubArea: Sine, cosine, tangent and cotangentLevel: CProject ID: 1003076704Source Problem: 2010016808Accepted: 1Clonable: 1Easy: 0Simplifying the expression \( 1 - (\cos x - \sin x)^2 \) we get:\( \sin 2x \)\( \cos 2x \)\( 2 - \sin x \)\( 1 - \sin 2x \)
