Math Problem Statement
Lim
Solution
The expression in the image is:
To solve this limit, let's analyze it:
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Direct Substitution: If we directly substitute , we get: which is undefined (division by zero). Therefore, direct substitution doesn’t work here, so we need a different approach.
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Rewrite and Expand: Since this involves a cube root, we can use the approximation for small : where and we use the linear approximation for small values of around zero.
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Substitute the Approximation: Substitute into the limit:
Thus, the answer is:
Would you like more details or have any questions on this solution?
Related Questions:
- How can we apply different approximations for limits involving cube roots?
- What is the general method for handling indeterminate forms like in limits?
- How does the cube root approximation compare to other methods like L'Hôpital's Rule?
- Can we solve this limit using L'Hôpital's Rule, and what would be the process?
- Why does direct substitution not work for most indeterminate limits?
Tip:
For limits involving roots, try using Taylor expansions or approximations when direct substitution leads to indeterminate forms.
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Math Problem Analysis
Mathematical Concepts
Limits
Cube Roots
Approximations in Limits
Formulas
lim (h -> 0) [ (f(x + h) - f(x)) / h ]
Cube root approximation: (8 + h)^(1/3) ≈ 2 + h/12 for small h
Theorems
Limit definition of derivatives
Indeterminate forms and approximations
Suitable Grade Level
Grades 11-12