早教吧作业答案频道 -->数学-->
(log232+log1/28-2log1/41)(lg2+lg5)lg8/lg2急
题目详情
(log232+log1/28-2log1/41)(lg2+lg5)lg8/lg2 急
▼优质解答
答案和解析
(log232+log1/28-2log1/41)=lg(232*41²/28)=lg(58*41*41/28)
(lg2+lg5)=lg(2*5)=lg10=1
lg8/lg2=lg2^3/lg2=3lg2/lg2=3
总的=3lg(58*41*41/28)≈7.58881
(lg2+lg5)=lg(2*5)=lg10=1
lg8/lg2=lg2^3/lg2=3lg2/lg2=3
总的=3lg(58*41*41/28)≈7.58881
看了 (log232+log1/2...的网友还看了以下: