Functions Question 121
Question: $ \underset{x\to \infty }{\mathop{\lim }},\frac{{{(2x+1)}^{40}}{{(4x-1)}^{5}}}{{{(2x+3)}^{45}}}= $
[IIT 1990]
Options:
A) 16
B) 24
C) 32
D) 8
Show Answer
Answer:
Correct Answer: C
Solution:
$ \underset{n\to \infty }{\mathop{\lim }}[ \frac{1}{1-n^{2}}+\frac{2}{1-n^{2}}+…..+\frac{n}{1-n^{2}} ] $
BETA
