log9 16×log32 81=
运用对数的换底公式化简log23×log34×log45×log52:;(log43+log83)(log32+log9
(log43+log83)(log32+log92)=
设a=30.5,b=log32,c=cos23
(log23+log89)(log34+log98+log32)=______.
(log32+log92)•(log43+log83)= ___ .
log9^8×log4^27=____.
log9的五次=A log9的七次=B log3的35次?
已知log9 5=a,log9 7=b,求log35 9的值
log9(45)-log9(5)
a=log32 b=in2 c=5-1/2 比大小(有具体方法
若log32=m,log35=n,则lg5用m,n表示为______.
若log32 9=p,log3 5=q,如何用p.q表示lg5?