請證明sin(1°)和sin(3°)的根號表達式(貼在裏邊)
所有跟帖:
• 網上抄來的求sin72°,cos18°,sin18°的方法,應該可用於求sin1° -競選- ♂ (3795 bytes) () 09/30/2023 postreply 21:22:30
• 關鍵在於求出sin10, 然後可以導出sin1 -askerfor- ♂ (0 bytes) () 10/01/2023 postreply 18:03:31
• 網上抄來的求sin72°,cos18°,sin18°的方法,應該可用於求sin1° -競選- ♂ (3795 bytes) () 09/30/2023 postreply 21:22:30
• 關鍵在於求出sin10, 然後可以導出sin1 -askerfor- ♂ (0 bytes) () 10/01/2023 postreply 18:03:31
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