lg5
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lg5等于多少,则lg5(用p,q表示0)等于？
log8(3)=p ==> (lg3)/[lg(1000/125)]=p ==> (lg3)/(3-3)=p –(1); log3(5)=q ==> (lg3)/(lg5)=q –(2).由(1)×(2),得(lg5)/(3-3lg5)=pq ==> lg5=3pq/(1+3pq)lg5多少。 log(8)3=p—>lg3/lg…
log8(3)=p ==> (lg3)/[lg(1000/125)]=p ==> (lg3)/(3-3)=p –(1); log3(5)=q ==> (lg3)/(lg5)=q –(2).由(1)×(2),得(lg5)/(3-3lg5)=pq ==> lg5=3pq/(1+3pq)lg5多少。 log(8)3=p—>lg3/lg…
