运用对数换底公式化简log2(3)*log3(4)*log4(5)*log5(2),
运用对数换底公式化简log2(3)*log3(4)*log4(5)*log5(2),
数学人气:603 ℃时间:2019-09-17 10:41:32
优质解答
log2(3)*log3(4)*log4(5)*log5(2)=log2(3)*log3(2^2)*log2^2(5)*log5(2)=log2(3)*2log3(2)*1/2 * log2(5)*log5(2) (2与1/2约分了)=log2(3)*1/log2(3) * log2(5) * 1/log2(5)=1
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