Math Problem Statement
lim_{x → 0} sin(8x) / tan(2x)
Solution
To solve the limit:
We can use the small-angle approximation for sine and tangent, which states that as ,
Let's break it down step-by-step:
- The given limit is:
- Applying the small-angle approximations:
- Substituting these approximations into the original expression:
- Simplifying the expression:
Thus, the value of the limit is:
Would you like more details on any of these steps or have further questions?
Here are five related questions to expand on this topic:
- What happens if you substitute other values of in the limit equation?
- How does L'Hopital's Rule apply to solving limits like this?
- Can the small-angle approximations be used for larger values of ?
- What is the geometric interpretation of the small-angle approximation for sine and tangent?
- How does the limit change if you replace the functions with their hyperbolic counterparts, like and ?
Tip: When solving limits involving trigonometric functions near zero, small-angle approximations are a powerful tool for simplifying expressions.
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Math Problem Analysis
Mathematical Concepts
Limits
Trigonometric Functions
Small-Angle Approximation
Formulas
sin(x) ≈ x as x → 0
tan(x) ≈ x as x → 0
Theorems
Small-Angle Approximation
Limit Laws
Suitable Grade Level
Grades 11-12 (High School Calculus)