log9^16乘以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)=
log32乘以[根号(2+根号三)-根号(2-根号三)] 32是底数
设a=30.5,b=log32,c=cos23
(log23+log89)(log34+log98+log32)=______.
(log32+log92)•(log43+log83)= ___ .
log9^8×log4^27=____.
(1)log4 27乘以log25 8乘以log9 5 (2)(log4 3+log8 3)(log3 2+log9 2
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