[代數] 求極值
高一學生問了一題,如下
http://i.imgur.com/OabhfPW.jpg
用三角函數可以解出最大值為5
但要怎麼解釋給孩子聽
想請教版上有沒有其他方法
感恩
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→
08/12 01:59, , 1F
08/12 01:59, 1F
推
08/12 10:07, , 2F
08/12 10:07, 2F
→
08/12 10:52, , 3F
08/12 10:52, 3F
推
08/12 14:33, , 4F
08/12 14:33, 4F
→
08/12 14:34, , 5F
08/12 14:34, 5F
推
08/12 14:48, , 6F
08/12 14:48, 6F
→
08/12 14:49, , 7F
08/12 14:49, 7F
→
08/12 16:29, , 8F
08/12 16:29, 8F
→
08/12 17:18, , 9F
08/12 17:18, 9F
→
08/12 20:08, , 10F
08/12 20:08, 10F
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