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27^2/3-2^log2^3xlog2^1/8+lg^4+2lg^5等于
人气:279 ℃ 时间:2020-08-26 17:58:11
解答
=(3^3)^2/3-3×log2^[2^(-3)]+2lg^2+2lg^5
=3^2-3×(-3)+2(lg^2+lg^5)
=9+9+2
=20
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