比较大小(1)LOG2 3.6,log4 3.2,log4 3.6(2)6的0.7次方,0.7的0.8次方,0.8的0.7次方急!
问题描述:
比较大小(1)LOG2 3.6,log4 3.2,log4 3.6(2)6的0.7次方,0.7的0.8次方,0.8的0.7次方急!
答
(1)log(2)3.6,log(4)3.2,log(4)3.6
log(2)3.6=log(4)12.96
∵4>1
∴log(2)3.6>log(4)3.6>log(4)3.2
(2)6的0.7次方,0.7的0.8次方,0.8的0.7次方
6的0.7次方>1
0.7的0.8次方6的0.7次方>0.8的0.7次方>0.7的0.8次方