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Senior High
Mathematics
請問進階題的第二題
Senior High
Mathematics
求解D,E選項
Senior High
Mathematics
這句話的意思是cos2不管在哪個象限都是正號嗎?
Senior High
Mathematics
為什麼可以消掉變成1啊?
Senior High
Mathematics
求!謝謝謝謝!
Senior High
Mathematics
求!劃線的地方有點不懂
Senior High
Mathematics
想請問這題, 我要怎麼知道在0~-1之間還有一個交點,因為我自己畫圖是只有看到2個,謝謝!
Senior High
Mathematics
請教這題 謝謝 三角函數
Senior High
Mathematics
b值要怎麼算
Senior High
Mathematics

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