Table of contents
- 0. Functions7h 52m
- Introduction to Functions16m
- Piecewise Functions10m
- Properties of Functions9m
- Common Functions1h 8m
- Transformations5m
- Combining Functions27m
- Exponent rules32m
- Exponential Functions28m
- Logarithmic Functions24m
- Properties of Logarithms34m
- Exponential & Logarithmic Equations35m
- Introduction to Trigonometric Functions38m
- Graphs of Trigonometric Functions44m
- Trigonometric Identities47m
- Inverse Trigonometric Functions48m
- 1. Limits and Continuity2h 2m
- 2. Intro to Derivatives1h 33m
- 3. Techniques of Differentiation3h 18m
- 4. Applications of Derivatives2h 38m
- 5. Graphical Applications of Derivatives6h 2m
- 6. Derivatives of Inverse, Exponential, & Logarithmic Functions2h 37m
- 7. Antiderivatives & Indefinite Integrals1h 26m
- 8. Definite Integrals3h 25m
4. Applications of Derivatives
Differentials
Problem 59
Textbook Question
Evaluate the following limits in two different ways: with and without l’Hôpital’s Rule.
lim_x→∞ (2x⁵ - x + 1) / (5x⁶ + x)
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1
Identify the limit to evaluate: lim_x→∞ (2x⁵ - x + 1) / (5x⁶ + x).
Determine the form of the limit as x approaches infinity. Both the numerator and denominator approach infinity, indicating an indeterminate form of ∞/∞.
First, simplify the expression by dividing every term in the numerator and denominator by the highest power of x in the denominator, which is x⁶.
Rewrite the limit as lim_x→∞ [(2/x + (-1/x⁵) + (1/x⁶)) / (5 + (1/x⁵))].
Evaluate the limit by substituting x with infinity, which simplifies the expression to 0/5, leading to the limit value.
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