題一：https://socratic.org/questions/how-do-you-evaluate-sin-pi-7-sin-2pi-7-sin-3pi-7
題二：https://socratic.org/answers/437909
Pages: 1 2
享受思維樂趣
享受思維樂趣
題一：https://socratic.org/questions/how-do-you-evaluate-sin-pi-7-sin-2pi-7-sin-3pi-7
題二：https://socratic.org/answers/437909