SubArea: Sine, cosine, tangent and cotangentLevel: BProject ID: 1003076514Accepted: 1Clonable: 0Easy: 0By simplifying the expression \( \cos\left( \frac{\pi}2 - x \right) \) we get:\( \sin x \)\( \cos x \)\( -\sin x \)\( -\cos x \)
