问题
选择题
— Could you tell me what happened?
— I'm not going to tell you about it, it's ________.[ ]
A. uncertain
B. enormous
C. perfect
D. private
答案
答案:D
— Could you tell me what happened?
— I'm not going to tell you about it, it's ________.[ ]
A. uncertain
B. enormous
C. perfect
D. private
答案:D
设定义在区间[x1,x2]上的函数y=f(x)的图象为C,M是C上的任意一点,O为坐标原点,设向 量
(1)设函数 f(x)=x2在区间[0,1]上可在标准k下线性近似,求k的取值范围; (2)求证:函数g(x)=lnx在区间[em,em+1](m∈R)上可在标准k=
(参考数据:e=2.718,ln(e-1)=0.541) |