对数比较大小口诀与技巧结:底数真数全解析
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- 姣旇緝鏂板垎瀛愮殑澶у皬
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鈫?log鈧? = ln8/ln5 鈮?1.292
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鈫?寮曞叆涓棿鍊糽og鈧?=2
鈫?log鈧?鈮?.585 < 2
鈫?log鈧?鈮?.262 < 2
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濡傛灉a锛瀊锛?锛屽姞m鍏嬬硸鍚庯紝(a+m)/(b+m)锛瀉/b
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姣旇緝log鈧?鍜宭og鈧?锛?br/>
鈫?鐪嬩綔3/(2+1) vs 8/(5+3)
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鐗瑰緛 | 搴曟暟锛? | 0<搴曟暟<1 |
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涓巠=1浜ょ偣 | 鍦ㄥ彸渚ц繙澶?/td> | 鍦ㄥ乏渚ц繎澶?/td> |
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- 褰?log_a3
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