SubArea: Sine, cosine, tangent and cotangentLevel: BProject ID: 1003076501Source Problem: 2010016801Accepted: 1Clonable: 1Easy: 1To which quadrant does the angle \( \alpha \) belong if \( \sin\alpha=0.8 \) and \( \cos\alpha < 0 \)?II.I.III.IV.
