已知x的对数、求x lgx=lga+lgb、logax=logam-logan
问题描述:
已知x的对数、求x lgx=lga+lgb、logax=logam-logan
答
lgx=lga+lgb
lgx=lg(ab)
x=ab
logax=logam-logan
log(a)x=log(a)m/n
x=m/n
答
lgx=lga+lgb
lgx=lgab
x=ab
2、loga x=loga m/n
x=m/n