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log2^9*log3^8
人气:221 ℃ 时间:2020-03-30 10:09:47
解答

log2(9)×log3(8)
=log2(3²)×log3(2³)
=2log2(3)×3log3(2)
=6×log2(3)×log3(2)
=6×1
=6
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