Functions Question 56
Question: The value of $ \underset{x\to \infty }{\mathop{\lim }},( \frac{x^{2}+bx+4}{x^{2}+ax+5} ) $ is
[MP PET 1993]
Options:
A) b/a
B) 1
C) 0
D) 4/5
Show Answer
Answer:
Correct Answer: B
Solution:
$ \underset{x\to \infty }{\mathop{\lim }}[ \frac{1+\frac{b}{x}+\frac{4}{x^{2}}}{1+\frac{a}{x}+\frac{5}{x^{2}}} ]=1. $