[(1-log以6為底3的對數(shù))^2+log以6為底2的對數(shù)*log以6為底18的對數(shù)]/log以6為底4的對數(shù)=?

數(shù)學人氣：271 ℃時間：2019-08-16 23:21:22

優(yōu)質(zhì)解答

1-log以6為底3的對數(shù)
=log以6為底6的對數(shù)-log以6為底3的對數(shù)
=log以6為底2的對數(shù)
log以6為底18的對數(shù)
=log以6為底6的對數(shù)+log以6為底3的對數(shù)
=1+1-log以6為底2的對數(shù)
=2-log以6為底2的對數(shù)
log以6為底4的對數(shù)
=2log以6為底2的對數(shù)
設(shè)log以6為底2的對數(shù)=x
原式=[x^2+x(2-x)]/2x=1
我計算不好,樓主自己再算一遍為好