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0. Functions7h 52m
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
- Area Between Curves
  1h 18m
- Introduction to Volume & Disk Method
  1h 8m
10. Physics Applications of Integrals 3h 16m
- Kinematics
  1h 13m
- Work
  2h 3m
11. Integrals of Inverse, Exponential, & Logarithmic Functions2h 34m
12. Techniques of Integration7h 39m
13. Intro to Differential Equations2h 55m
14. Sequences & Series5h 36m
15. Power Series2h 19m
- Introduction to Power Series
  1h 9m
- Taylor Series & Taylor Polynomials
  1h 10m
16. Parametric Equations & Polar Coordinates7h 58m

7. Antiderivatives & Indefinite Integrals

Indefinite Integrals

Calculus

7. Antiderivatives & Indefinite Integrals

Indefinite Integrals

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Multiple Choice

Evaluate the integral. (Use c for the constant of integration.) $\int \ln (x) d x$

\frac{1}{x} + c

x \ln (x) - x + c

x^{2} \ln (x) + c

\ln (x^{2}) + c

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Verified step by step guidance

Step 1: Recognize that the integral involves the natural logarithm function ln(x). To evaluate this integral, consider using integration by parts, which is based on the formula: ∫u dv = uv - ∫v du.

Step 2: Choose u = ln(x) and dv = dx. This choice is strategic because the derivative of ln(x) simplifies to 1/x, and dx is easy to integrate.

Step 3: Compute du and v. Since u = ln(x), then du = (1/x) dx. For dv = dx, integrating gives v = x.

Step 4: Substitute into the integration by parts formula: ∫ln(x) dx = uv - ∫v du. Replace u, v, and du with their respective expressions: ∫ln(x) dx = x ln(x) - ∫x * (1/x) dx.

Step 5: Simplify the remaining integral. Notice that x * (1/x) simplifies to 1, so ∫x * (1/x) dx = ∫1 dx = x. Therefore, the integral becomes x ln(x) - x + c, where c is the constant of integration.