Functions Question 193

Question: $ \underset{x\to \infty }{\mathop{\lim }},\frac{(2x-3)(3x-4)}{(4x-5)(5x-6)}= $

[MP PET 1996]

Options:

A) 0

B) 1/10

C) 1/5

D) 3/10

Show Answer

Answer:

Correct Answer: D

Solution:

$ \underset{x\to \infty }{\mathop{\lim }},\frac{(2x-3)(3x-4)}{(4x-5)(5x-6)} $ $ =\underset{x\to \infty }{\mathop{\lim }},\frac{x^{2}( 2-\frac{3}{x} ),( 3-\frac{4}{x} )}{x^{2}( 4-\frac{5}{x} ),( 5-\frac{6}{x} )}=\frac{6}{20}=\frac{3}{10} $ .