问题:
方程x-1=lgx必有一个根的区间是
[ ]
A、(0.1,0.2)
B、(0.2,0.3)
C、(0.3,0.4)
D、(0.4,0.5)
方程x-1=lgx必有一个根的区间是
B、(0.2,0.3)
C、(0.3,0.4)
D、(0.4,0.5)
[ ]
A、(0.1,0.2) B、(0.2,0.3)
C、(0.3,0.4)
D、(0.4,0.5)
参考答案: