题目
5.下列函数在给定变化过程中是无穷小量的是（A. x/(x-1) (x→∞)B. (ln(2+x))/(cosx) (x→0)C. x/(√(x^2+1)) (x→∞)D. (tanx)/(x^2-1) (x→0)
5.下列函数在给定变化过程中是无穷小量的是（
A. x/(x-1) (x→∞)
B. (ln(2+x))/(cosx) (x→0)
C. x/(√(x^2+1)) (x→∞)
D. (tanx)/(x^2-1) (x→0)
题目解答
答案
DB
D. (tanx)/(x^2-1) (x→0)
B. (ln(2+x))/(cosx) (x→0)
D. (tanx)/(x^2-1) (x→0)
B. (ln(2+x))/(cosx) (x→0)