Math Problem Statement
Solution
The problem in the image appears to be about determining the limit of the following expression:
Solution Steps:
-
Direct Substitution (Substitusi Langsung):
- First, substituting directly into the expression gives:
This results in an indeterminate form , so we need to manipulate the expression further.
-
Factoring the Expression:
- To resolve the indeterminate form, the expression can be factored.
- Expanding and gives:
So, the numerator becomes:
Factoring this expression out of common terms:
-
Simplifying the Denominator:
- The denominator can be factored as:
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Canceling Common Terms:
- Now, we can cancel from both the numerator and denominator:
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Substitute Again:
- Now, substitute into the simplified expression:
Thus, the final value of the limit is:
Would you like more details on any step of the process?
Here are five questions to further your understanding:
- How do you identify indeterminate forms like ?
- What are some alternative ways to solve limits aside from factoring?
- Can L'Hopital's Rule be applied in this problem? If so, how?
- Why is factoring an effective method for solving limits involving indeterminate forms?
- How can you verify the result of this limit calculation using graphical or numerical methods?
Tip: Always attempt direct substitution first when evaluating limits—it quickly shows if further manipulation is necessary.
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Math Problem Analysis
Mathematical Concepts
Limits
Algebraic Factoring
Indeterminate Forms
Formulas
Direct substitution to check indeterminate form: f(x) = (3x - 1)^3 - (x + 3)^3
Factoring cubic expressions: a^3 - b^3 = (a - b)(a^2 + ab + b^2)
Theorems
Limit Theorems
Factoring Theorem for Polynomials
Suitable Grade Level
Grades 10-12