Math Problem Statement

Evaluate the limit \( \lim_{{x \to \infty}} \frac{x+1}{x+2} \).

Solution

To solve the limit

limxx+1x+2\lim_{{x \to \infty}} \frac{x+1}{x+2}

we'll analyze the expression by dividing the numerator and the denominator by xx:

x+1x+2=x+1xx+2x=xx+1xxx+2x=1+1x1+2x.\frac{x+1}{x+2} = \frac{\frac{x+1}{x}}{\frac{x+2}{x}} = \frac{\frac{x}{x} + \frac{1}{x}}{\frac{x}{x} + \frac{2}{x}} = \frac{1 + \frac{1}{x}}{1 + \frac{2}{x}}.

As xx \to \infty, the terms 1x\frac{1}{x} and 2x\frac{2}{x} approach zero. Therefore, the expression simplifies to:

limx1+1x1+2x=1+01+0=11=1.\lim_{{x \to \infty}} \frac{1 + \frac{1}{x}}{1 + \frac{2}{x}} = \frac{1 + 0}{1 + 0} = \frac{1}{1} = 1.

So,

limxx+1x+2=1.\lim_{{x \to \infty}} \frac{x+1}{x+2} = 1.

Would you like more details or have any questions?

Here are some related questions that might interest you:

  1. How do you find limits involving rational functions in general?
  2. What is the behavior of functions like x+1x+n\frac{x + 1}{x + n} as xx \to \infty for different values of nn?
  3. How can L'Hôpital's Rule be applied to similar limits?
  4. What other techniques are useful for limits as xx \to \infty in more complex expressions?
  5. How can this limit be interpreted in terms of horizontal asymptotes?

Tip: For rational functions, dividing terms by the highest power of xx can simplify evaluating limits as xx \to \infty.

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Math Problem Analysis

Mathematical Concepts

Limits
Asymptotic Analysis
Rational Functions

Formulas

\lim_{{x \to \infty}} \frac{f(x)}{g(x)} for rational functions

Theorems

Limit Laws
Asymptotic Behavior of Rational Functions

Suitable Grade Level

Grades 11-12