lg5/2lg2/3lg3/5 等于几,

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lg5/2*lg2/3*lg3/5 等于几,
lg5/2*lg2/3*lg3/5 等于几,

lg5/2*lg2/3*lg3/5 等于几,
log5/2*log2/3*log3/5
=lg5/lg2*lg2/lg3*lg3/lg5
=1