For the function , at which -value does a local maximum occur?
Table of contents
- 0. Functions7h 55m
- Introduction to Functions18m
- Piecewise Functions10m
- Properties of Functions9m
- Common Functions1h 8m
- Transformations5m
- Combining Functions27m
- Exponent rules32m
- Exponential Functions28m
- Logarithmic Functions24m
- Properties of Logarithms36m
- 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 Integrals4h 44m
- 9. Graphical Applications of Integrals2h 27m
- 10. Physics Applications of Integrals 3h 16m
- 11. Integrals of Inverse, Exponential, & Logarithmic Functions2h 31m
- 12. Techniques of Integration7h 41m
- 13. Intro to Differential Equations2h 55m
- 14. Sequences & Series5h 36m
- 15. Power Series2h 19m
- 16. Parametric Equations & Polar Coordinates7h 58m
5. Graphical Applications of Derivatives
Intro to Extrema
Multiple Choice
For the curve , at what value of does the curve have maximum curvature?
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Verified step by step guidance1
Step 1: Recall the formula for curvature, κ, of a curve y = f(x). It is given by: κ = |f''(x)| / (1 + (f'(x))²)^(3/2). This formula will help us determine the curvature of the given curve y = 7 ln(x).
Step 2: Compute the first derivative of y = 7 ln(x). Using the derivative rule for ln(x), we find f'(x) = d/dx[7 ln(x)] = 7/x.
Step 3: Compute the second derivative of y = 7 ln(x). Using the derivative rule for 1/x, we find f''(x) = d/dx[7/x] = -7/x².
Step 4: Substitute f'(x) = 7/x and f''(x) = -7/x² into the curvature formula κ = |f''(x)| / (1 + (f'(x))²)^(3/2). Simplify the expression for κ in terms of x.
Step 5: Analyze the expression for κ to find the value of x that maximizes the curvature. This involves finding the critical points of κ by taking its derivative with respect to x and solving for x. Verify the maximum curvature occurs at x = e.
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