"Ah," Lucas whispered. In his haste, he had skipped drawing the diagram to scale. He had tried to hold the geometry in his head.
Mi recomendación: si no puedes comprarlo, busca la versión más reciente en la biblioteca de tu universidad o pide prestado a un compañero. Solucionario Serie Schaum Calculo Diferencial E Integral -
"Rough day?" a voice asked.
Elena pulled up a chair. She didn't look at his textbook. Instead, she reached into her bag and pulled out a thick, black paperback book with distinctive white lettering on the cover. It was worn, the spine cracked from use. "Ah," Lucas whispered