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2log5(25)+3log2(64)-8ln1等于多少
人气:391 ℃ 时间:2020-03-21 07:08:57
解答
2log5(25)+3log2(64)-8ln1
=2log5(5)^2+3log2(2)^6-8ln1
=2*2+3*6-0
=4+18
=22
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