已知10^a=20,10^2b=5^(-1),求10^a+b
已知10^a=20,10^2b=5^(-1),求10^a+b
数学人气:568 ℃时间:2020-06-08 12:29:00
优质解答
10^(a+b)=10^a×10^b=20×√(1/5)=4√5
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