问题 填空题
计算:
lim
n→∞
2n2-n+1
1+3+…+(2n-1)
=______.
答案

lim
n→∞
2n2-n+1
1+3+…+(2n-1)

=

lim
n→∞
2n2-n+1
n
2
(1+2n-1)

=

lim
n→∞
2n2-n+1
n2

=2.

故答案为:2.

判断题
单项选择题