
[中學] 一題極限

請問這題的答案
我想應該不行用指數公式把n消掉
突然卡住了,求各位幫忙
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推
02/26 19:55, , 1F
02/26 19:55, 1F
推
02/26 20:19, , 2F
02/26 20:19, 2F
→
02/26 20:43, , 3F
02/26 20:43, 3F

→
02/26 20:43, , 4F
02/26 20:43, 4F
→
02/26 20:43, , 5F
02/26 20:43, 5F
推
02/26 21:14, , 6F
02/26 21:14, 6F
→
02/26 21:16, , 7F
02/26 21:16, 7F
→
02/26 21:16, , 8F
02/26 21:16, 8F
→
02/26 21:42, , 9F
02/26 21:42, 9F
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