用logax,logay,logaz表示下列各式:(1)loga(xy/z) (2)loga[(x^2根号y)/(三次根号z)]

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用logax,logay,logaz表示下列各式:(1)loga(xy/z) (2)loga[(x^2根号y)/(三次根号z)]
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用logax,logay,logaz表示下列各式:(1)loga(xy/z) (2)loga[(x^2根号y)/(三次根号z)]
用logax,logay,logaz表示下列各式:(1)loga(xy/z) (2)loga[(x^2根号y)/(三次根号z)]

用logax,logay,logaz表示下列各式:(1)loga(xy/z) (2)loga[(x^2根号y)/(三次根号z)]
(1)loga(xy/z) = loga x + loga y - loga z
(2)原式 = loga x^2 + loga 根号y - loga 三次根号 z
= 2 loga x + 1/2 loga y - 1/3 loga z

(1)loga(xy/z)=logax+logay-logaz
(2)loga[(x^2根号y)/(三次根号z)]= loga[(x^2根号y)]-loga[(三次根号z)]=2logax+1/2logay-1/3logaz