log(a)(b)=log(c)(b)/log(c)(a)
原式=log2(3)/log2(x)+log2(4)/log2(x)+log2(5)/log2(x)
=log2(60)/log2(x)
=logx(60)
化簡(jiǎn):1/log3(x)+1/log4(x)+1/log5(x)=
化簡(jiǎn):1/log3(x)+1/log4(x)+1/log5(x)=
數(shù)學(xué)人氣：159 ℃時(shí)間：2020-01-24 16:56:49
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