比较log1/2 ^3与log1/5^3的大小,

问题描述:

比较log1/2 ^3与log1/5^3的大小,

log1/2 ^3=1/log3(1/2)
log1/5^3=1/log3(1/5)
log3(1/2)>log3(1/5)
1/log3(1/2)log1/2 ^3