Sin embargo, cuando los estudiantes buscan el "solucionario", a menudo se refieren a dos cosas:
Lucas sat in the university library, staring blankly at a page in his calculus textbook. The problem was a monster: a related rates problem involving a leaking conical tank. He had been staring at it for forty-five minutes. He knew the formulas, he knew the concepts, but every time he tried to set up the equation, the algebra fell apart, and the answer in the back of the book—a cryptic $5.23 \text cm^3/\textmin$—felt like a taunt. Solucionario Serie Schaum Calculo Diferencial E Integral -