y=(1/2)^(x^2-3x+2)的单调区间为...当x∈[1,3]的值域：且取最大值的x是：

y=(1/2)^(x^2-3x+2)的单调区间为...
当x∈[1,3]的值域：
且取最大值的x是：

y=log1/2^(x^2-3x+2) y=log(2^(-1))^(x^2-3x+2) =logx

y=log1/2^(x^2-3x+2) y=log(2^(-1))^(x^2-3x+2) =logx<3/2时,-(x-3/2)^2+1/4为增函数。则y=log2^(-(x-3/2)^2+