Question

1.函数F(X)=Ln(x平方-2X)的单调递增区间是(

Answer 1

1、t=x^2-2x>0,x2

(2,+∞)时,t=x^2-2x增,y=lnt增,复合后增区间

2、f(2)=0,4a+2b+1=0,b=(-1/2)-2a

f(0)f(1)