It looks like you’re searching for the PDF of by Hamilton Luiz Guidorizzi – a classic textbook widely used in Brazilian and Portuguese-speaking engineering/mathematics courses.
"Guidorizzi" "CГЎlculo 1" filetype:pdf site:usp.br Or look for “capГtulo 1” samples on the publisher’s site. If you actually need the solutions manual (often called “Resolução do Guidorizzi” ), many students share handwritten or typed solutions for non-commercial study. Search for: “Guidorizzi soluções volume 1” PDF But again, avoid sharing full copyrighted books. Would you like a list of free calculus books in Portuguese that cover the same topics (limits, derivatives, integrals) as Guidorizzi’s first volume? I can recommend legal PDFs from institutional repositories. Calculo 1 Guidorizzi Pdf-