Math Problem Statement
Evaluate the limit limx→2(−3(x−2)/4|x−2|).
Solution
We are asked to evaluate the limit:
Step 1: Break it into two cases
Since the expression involves , we need to handle this piecewise, depending on whether is approaching 2 from the left (i.e., ) or from the right (i.e., ).
Case 1: (Approaching from the right)
When , we have . Therefore, the expression becomes:
Simplifying this:
Case 2: (Approaching from the left)
When , we have . Therefore, the expression becomes:
Simplifying this:
Step 2: Conclusion
We observe that the limit from the right is and the limit from the left is . Since these two one-sided limits are not equal, the two-sided limit does not exist.
Thus, the limit is:
Would you like further details or have any questions?
Here are some related questions:
- How does the absolute value function impact limits?
- What are one-sided limits and why are they important?
- Can a function have different one-sided limits?
- How do you evaluate limits involving absolute value?
- What is the significance of piecewise functions in limit evaluation?
Tip: When working with absolute values in limits, always consider both sides (left and right) to ensure the correct limit behavior.
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Math Problem Analysis
Mathematical Concepts
Limits
Absolute Value
Piecewise Functions
One-sided Limits
Formulas
lim_{x \to 2} \left( -\frac{3(x - 2)}{4 |x - 2|} \right)
Absolute Value: |x - 2|
Piecewise Case: lim_{x \to 2^+} and lim_{x \to 2^-}
Theorems
Limit Theorem
Piecewise Function Limit Evaluation
One-sided Limit Theorem
Suitable Grade Level
Undergraduate Calculus or Advanced High School (Grades 11-12)