计算题 (log2\5+log4\0.2)(log5\2+log25\0.5)2是下标~
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![计算题 (log2\5+log4\0.2)(log5\2+log25\0.5)2是下标~](/uploads/image/z/1757090-2-0.jpg?t=%E8%AE%A1%E7%AE%97%E9%A2%98+%28log2%5C5%2Blog4%5C0.2%29%28log5%5C2%2Blog25%5C0.5%292%E6%98%AF%E4%B8%8B%E6%A0%87%EF%BD%9E)
计算题 (log2\5+log4\0.2)(log5\2+log25\0.5)2是下标~
计算题 (log2\5+log4\0.2)(log5\2+log25\0.5)
2是下标~
计算题 (log2\5+log4\0.2)(log5\2+log25\0.5)2是下标~
由变换(log2\5+log4\0.2)=log(2\5)*(4\0.2)=log8
同理(log5\2+log25\0.5)=log125,因此log8+log125=log8*125=log1000=3