写出函数y=-x²+3x-2的单调递增区间,y=√(x-2)(x-1)的单调递减区间y=1/(x-1)的单调区间

问题描述:

写出函数y=-x²+3x-2的单调递增区间,
y=√(x-2)(x-1)的单调递减区间
y=1/(x-1)的单调区间

y=-(x²-3x+9/4)+1/4
=-(x-3/2)²+1/4
∵a=-1