Question

Yy

求解

3a
+1
2. 數列(an>,已知lim
n
=2,求lima
818
4a
+ 2
n→00
n
n
=

Answer 1

✨ 最佳解答 ✨

qn

因 lim_{n→∞} aₙ 存在, 設其為 A
所以原極限 = (3A+1)/(4A+2) = 2
3A+1 = 8A+4
5A=-3
A=-3/5