Math Problem Statement
\lim_{x\rarr2} $$$$ \frac{x+2}{\left(x-2\right)^2}=
Solution
To find the limit
we can start by analyzing the behavior of the numerator and the denominator as .
- Substitute :
- In the numerator, .
- In the denominator, .
This gives us a form of , which indicates a division by zero, suggesting that the limit may approach infinity or negative infinity. We need to examine the direction of approach for .
- Analyze the sign as and :
- When (approaching from the right), is a small positive number, so is a small positive value.
- When (approaching from the left), is a small negative number, but is still a small positive value (since it’s squared).
In both cases, the denominator approaches , a small positive value, while the numerator remains close to . Therefore:
because the fraction becomes very large as gets closer to 2 from either side.
Final Answer
Would you like more details on this solution, or do you have further questions?
- What is an example of a limit approaching infinity with a different denominator?
- How does the square in affect the behavior of this limit?
- How would the result change if the numerator were instead?
- What happens if you take a similar limit but with in the denominator?
- Can limits approach negative infinity? Under what conditions?
Tip: When encountering a zero in the denominator, consider approaching from both sides to see if the limit goes to positive or negative infinity.
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Math Problem Analysis
Mathematical Concepts
Limits
Infinity
Division by Zero
Formulas
\lim_{x \to a} \frac{f(x)}{g(x)} where g(x) \to 0
Theorems
Limit analysis as x approaches a constant
Behavior of functions approaching infinity
Suitable Grade Level
Grade 12 or College Calculus
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