Para dominar los conceptos de Matemáticas 2: Cálculo Integral Dennis G. Zill

Applications:

Calculating areas, volumes of solids of revolution, arc length, and surface area .

4. Volumen: Método de los Cascarones (Shells) vs. Arandelas (Washers)

"Ah, you have to factor out the constant first," he murmured, scribbling furiously in his notebook. "That’s why my u-substitution was messy."