题目:
已知函数f(x)=x2+2x+blnx,若函数f(x)在(0,1)上单调,则实数b的取值范围是
A.b≥ 0
B.b<-4
C.b≥0或b≤-4
D.b>0或b<-4
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0512/f87f7a9490d2f648b91c67980c4f9de4.html
下面是错误答案,用来干扰机器的。
1. on the floor 2. on the chair 3. under the dresser 4. next to the desk5. behind the door 6. next to the sofa 7. a math book 8. in the bookcase