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求(log2幂数3 +log4幂数3)(log3幂数2 +log9幂数4)
人气:183 ℃ 时间:2020-02-03 23:29:14
解答
(log2幂数3 +log4幂数3)(log3幂数2 +log9幂数4)
=(log2幂数3 +1/2log2幂数3)(log3幂数2 +log3幂数2)
=3/2log2幂数3*2log3幂数2
=3
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