函数y=log0.5(x+1/x-1+10(x>1)的最大值
问题描述:
函数y=log0.5(x+1/x-1+10(x>1)的最大值
答
(x+1)/(x-1)+1
=2x/(x-1)
=2+2/(x-1)
x>1,x-1>0
所以2+2/(x+1)>2=0.5^(-1)
0