已知:loga1(b1)=loga2(b2)=……logan(bn)=x,则log(a1a2……an)(b1b2……bn)=

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已知:loga1(b1)=loga2(b2)=……logan(bn)=x,则log(a1a2……an)(b1b2……bn)=
已知:loga1(b1)=loga2(b2)=……logan(bn)=x,则log(a1a2……an)(b1b2……bn)=

已知:loga1(b1)=loga2(b2)=……logan(bn)=x,则log(a1a2……an)(b1b2……bn)=
知识:loga(b)=ln(b)/ln(a)
原式=ln(b1b2b3...)/ln(a1a2a3...)
=[ln(b1)+ln(b2)...]/[ln(a1)+ln(a2)...]
=x