SUMMARY
The limit of ln(x^2 - 9) as x approaches 3 from the right is negative infinity. This occurs because as x approaches 3, the expression x^2 - 9 approaches 0, leading to the logarithm of a negative number, which is undefined. The key to understanding this limit lies in recognizing that ln(ab) = ln(a) + ln(b) can be applied, and that x^2 - 9 can be factored into (x - 3)(x + 3). Thus, the limit diverges to negative infinity as x approaches 3 from the right.
PREREQUISITES
- Understanding of logarithmic functions, specifically ln(x).
- Knowledge of limits in calculus.
- Ability to factor quadratic expressions.
- Familiarity with the concept of approaching values in limits.
NEXT STEPS
- Study the properties of logarithmic functions, focusing on ln(ab) = ln(a) + ln(b).
- Explore the concept of limits in calculus, particularly one-sided limits.
- Practice factoring quadratic expressions to enhance algebra skills.
- Learn about the behavior of logarithmic functions near their asymptotes.
USEFUL FOR
Students studying calculus, particularly those focusing on limits and logarithmic functions, as well as educators seeking to explain these concepts effectively.