ng woman appeared. Seeing the beautiful appearance on her face, the Golden Eagle Emperor's expression became very ugly although it had been many years since they last saw each other, he still recogniz...轉碼失敗！請您使用右上換源切換源站閱讀或者直接前往源網站進行閱讀！cosine value is negative in the second quadrant, indicating its value reflects a horizontal direction component on the unit circle.2. **Calculating $\sin\alpha$**: - Use the Pythagorean identity $co...